There are public institutions that want the Ten Commandments displayed.
If that is done the penalty for breaking a commandment should also be displayed. The New Testament teaches that the Old Testament should be obeyed. This includes both the Commandments and the results of not following the Commandments.

1. "Thou shalt have no other gods before me." (Exodus 20:3)
Deuteronomy 13:1-5 "If there arise among you a prophet, or a dreamer of dreams, and giveth thee a sign or a wonder. And the sign or the wonder come to pass, whereof he spake unto thee, saying, Let us go after other gods, which thou hast not known, and let us serve them; Thou shalt not hearken unto the words of that prophet, or that dreamer of dreams: for the LORD your God proveth you, to know whether ye love the LORD your God with all your heart and with all your soul. Ye shall walk after the LORD your God, and fear him, and keep his commandments, and obey his voice, and ye shall serve him, and cleave unto him. And that prophet, or that dreamer of dreams, shall be put to death; because he hath spoken to turn you away from the LORD your God ... So shalt thou put the evil away from the midst of thee."
Exodus 22:20 He that sacrificeth unto any god, save unto the Lord only, he shall be utterly destroyed.

2. Exodus 20:04 Thou shalt not make unto thee any graven image
Exodus 22:20 He that sacrificeth unto any god, save unto the Lord only, he shall be utterly destroyed.

3. Blasphemy
Blasphemy is contemptuous or irreverent talk about God, name and sacred things.
Leviticus 24:16 "And he that blasphemeth the name of the LORD, he shall surely be put to death, and all the congregation shall certainly stone him: as well the stranger, as he that is born in the land, when he blasphemeth the name of the LORD, shall be put to death."

4. Exodus 20:8 Remember the sabbath day, to keep it holy.
The seventh day Sabbath, incidentally, is Saturday not Sunday.
Exodus 31:14-15 "Ye shall keep the Sabbath therefore; for it is holy unto you: every one that defileth it shall surely be put to death: for whosoever doeth any work therein, that soul shall be cut off from among his people. Six days may work be done; but in the seventh is the Sabbath of rest, holy to the LORD: whosoever doeth any work in the Sabbath day, he shall surely be put to death."

5. Exodus 20:12 Honour thy father and thy mother: that thy days may be long upon the land which the Lord thy God giveth thee.
Exodus 21:15 And he that smiteth his father, or his mother, shall be surely put to death.
Exodus 21:17 And he that curseth his father, or his mother, shall surely be put to death.
Proverbs 23:13-14 "Withhold not correction from the child: for if thou beatest him with the rod, he shall not die. Thou shalt beat him with the rod, and shalt deliver his soul from hell."
Deuteronomy 21:18-21 "If a man have a stubborn and rebellious son, which will not obey the voice of his father, or the voice of his mother, and that, when they have chastened him, will not hearken unto them: Then shall his father and his mother lay hold on him, and bring him out unto the elders of his city, and unto the gate of his place; And they shall say unto the elders of his city, This our son is stubborn and rebellious, he will not obey our voice; he is a glutton, and a drunkard. And all the men of his city shall stone him with stones, that he die: so shalt thou put evil away from among you; and all Israel shall hear, and fear."
Leviticus 20:9 "For every one that curseth his father or his mother shall be surely put to death: he hath cursed his father or his mother; his blood shall be upon him ..."

6. Exodus 20:13 Thou shalt not kill.
Exodus 21:12 "He that smiteth a man, so that he die, shall be surely put to death."
Exodus 21:22-25 "If men strive, and hurt a woman with child, so that her fruit depart from her, and yet no mischief follow: he shall be surely punished, according as the woman's husband will lay upon him; and he shall pay as the judges determine. And if any mischief follow, then thou shalt give life for life, Eye for eye, tooth for tooth, hand for hand, foot for foot, Burning for burning, wound for wound, stripe for stripe."

7. Exodus 20:14 Thou shalt not commit adultery.
Leviticus 20:10 "And the man that committeth adultery with another man's wife, even he that committeth adultery with his neighbour's wife, the adulterer and the adulteress shall surely be put to death."
Deuteronomy 22:22 "If a man be found lying with a woman married to an husband, then they shall both of them die, both the man that lay with the woman, and the woman: so shalt thou put away evil from Israel."

Rape
Deuteronomy 22:25-26 "But if a man find a betrothed damsel in the field, and the man force her, and lie with her: then the man only that lay with her shall die: But unto the damsel thou shalt do nothing; there is in the damsel no sin worthy of death: for as when a man riseth against his neighbour, and slayeth him, even so is this matter."

8. Exodus 20:15 Thou shalt not steal.
Exodus 22:2-3 If a thief be found breaking up, and be smitten that he die, there shall no blood be shed for him. If the sun be risen upon him, there shall be blood shed for him; for he should make full restitution; if he have nothing, then he shall be sold for his theft.

Kidnap
Exodus 21:16 "And he that stealeth a man, and selleth him, or if he be found in his hand, he shall surely be put to death."

9. Exodus 20:16 Thou shalt not bear false witness against thy neighbor.
Prov. 19:9 A false witness shall not be unpunished, and he that speaketh lies shall perish. Examples: 2 King 5:25, 1 King 21:13, Matt 26:59-61
Ps 50:16-22 (NKJV) You sit and speak against your brother; You slander your mother's son. These things you have done, and I kept silent; You thought that I was altogether like you; But I will reprove you, and set them in order before your eyes. Now consider this, you who forget God, lest I tear you in pieces, and there be none to deliver'

10. Exodus 20:17 Thou shalt not covet thy neighbor's house, thou shalt not covet thy neighbour's wife, nor his manservant, nor his maidservant, nor his ox, nor his ass, nor any thing that is thy neighbour's.
James 1:14,15 (KJV) But every man is tempted, when he is drawn away of his own lust, and enticed. Then when lust hath conceived, it bringeth forth sin: and sin, when it is finished, bringeth forth death"
Exodus 22:19 Whosoever lieth with a beast shall surely be put to death

Deuteronomy 5:6 I am the Lord thy God, which brought thee out of the land of Egypt, from the house of bondage.
Deuteronomy 5:7 Thou shalt have none other gods before me.
Deuteronomy 5:8 Thou shalt not make thee any graven image, or any likeness of any thing that is in heaven above, or that is in the earth beneath, or that is in the waters beneath the earth:
Deuteronomy 5:9 Thou shalt not bow down thyself unto them, nor serve them: for I the Lord thy God am a jealous God, visiting the iniquity of the fathers upon the children unto the third and fourth generation of them that hate me,
Deuteronomy 5:10 And shewing mercy unto thousands of them that love me and keep my commandments.
Deuteronomy 5:11 Thou shalt not take the name of the Lord thy God in vain: for the Lord will not hold him guiltless that taketh his name in vain.
Deuteronomy 5:12 Keep the sabbath day to sanctify it, as the Lord thy God hath commanded thee.
Deuteronomy 5:13 Six days thou shalt labour, and do all thy work:
Deuteronomy 5:14 But the seventh day is the sabbath of the Lord thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, nor thy manservant, nor thy maidservant, nor thine ox, nor thine ass, nor any of thy cattle, nor thy stranger that is within thy gates; that thy manservant and thy maidservant may rest as well as thou.
Deuteronomy 5:15 And remember that thou wast a servant in the land of Egypt, and that the Lord thy God brought thee out thence through a mighty hand and by a stretched out arm: therefore the Lord thy God commanded thee to keep the sabbath day.
Deuteronomy 5:16 Honour thy father and thy mother, as the Lord thy God hath commanded thee; that thy days may be prolonged, and that it may go well with thee, in the land which the Lord thy God giveth thee.
Deuteronomy 5:17 Thou shalt not kill.
Deuteronomy 5:18 Neither shalt thou commit adultery.
Deuteronomy 5:19 Neither shalt thou steal.
Deuteronomy 5:20 Neither shalt thou bear false witness against thy neighbour.
Deuteronomy 5:21 Neither shalt thou desire thy neighbour's wife, neither shalt thou covet thy neighbour's house, his field, or his manservant, or his maidservant, his ox, or his ass, or any thing that is thy neighbour's.

Mosaic Law, Ten Commandments - other references to commandments

Ex. 20:1-17 The Ten Commandments were given to the Israelites at Sinai.

2 Ch. 31:3; Neh. 8:2, 3, 8, 14, 18; Ps 19:7 God gave Israel a single law which included the Ten Commandments.

Mal. 4:4 Israel was commanded to obey the Law of Moses; the law included the Ten Commandments.

Rom. 10:4 Christ is the end of the law for righteousness to everyone who believes.

Christ is the end of the law because he nailed it to the cross (cf. Col. 2:11-14).

Jesus came to fulfill the law (Matt. 5:17). Since Jesus fulfilled the law, we can be saved in Christ (cf. Acts 4:12; Rom. 3:24; 6:3; Gal. 3:27; 2 Tim. 2:1, 10), walking according to the Spirit (Rom. 8:1-4).

Rom. 3:20; Gal. 2:16 No one is justified by the works of the law.

Gal. 3:10; 5:2-4 Someone keeping one part of the law must keep the whole law. Someone keeping the Ten Commandments must keep the entire Mosaic Law.

Gal. 5:4 Anyone attempting to be justified by law has fallen from grace.

Gal. 3:24-25 The law was a tutor. Since faith has come, we are no longer under the tutor (i.e., we are no longer under (the law).

2 Cor. 3:7-11 The commandments that were written on stone (i.e., the Ten Commandments) brought death. Today we must obey the epistle of Christ which is written on our hearts (2 Cor. 3:3).

Heb. 7:12 The law was changed. We no longer live under the Ten Commandments or any other part of the Mosaic Law.

Heb. 10:8-10 Christ came to earth to take away the first covenant (law) and establish the second covenant (law).

Jesus said in John 10:35, "Scripture cannot be broken." This statement was made after he had said in John 5:46-47, "For had ye believed Moses, ye would have believed me: for he wrote of me. But if ye believe not his writings, how shall ye believe my words?"

1st. Commandment, Exodus 20:3 "Thou shalt have no other gods before me."

The punishment - Deuteronomy 17:3-5 "And hath gone and served other gods, and worshipped them, either the sun, or moon, or any of the host of heavens, which I have not commanded. Then shalt thou bring forth that man or that woman, which have committed that wicked thing and shalt stone them with stones, till they die"
More punishment - Exodus 22:20 "He that sacrificeth unto any god, save unto the Lord only, he shall be utterly destroyed."
New Testament punishment - Mark 16:16 "He that believeth not, shall be damned."

3rd. Commandment, Exodus 20:7 "Thou shalt not take the name of the Lord in vain."

The punishment - Leviticus 24:16 "And he that blasphemeth the name of the Lord, he shall surely be put to death,"
New Testament punishment - Matthew 12:32 "Whosoever speaketh against the Holy Ghost, it shall not be forgiven him, neither in this world, neither in the world to come."
Mark 3:29 - "He that shall blaspheme against the Holy Ghost hath never forgivness, but is in danger of eternal damnation,"

4th. Commandment, Exodus 20:8 "Remember the Sabbath day, to keep it holy."

The punishment - Exodus 31:15 "Whosoever shall work in the Sabbath day, he shall surely be put to death."

5th. Commandment, Exodus 20:12 "Honour thy father and thy mother."

The punishment - Exodus 21:15 and 17 "And he that smiteth his father, or his mother, shall be surely put to death."
More punishment - Exodus 21:17 "And he that curseth his father, or his mother, shall surely be put to death."

6th. Commandment, Exodus 20:13 "Thou shalt not kill."

Some exceptions - Exodus 22:19 "Whosoever lieth with a beast shall surely be put to death."
More exceptions - Leviticus 20:13 "If a man lie with mankind, as he lieth with a woman, both of them have committed an abomination: they shall surely be put to death."

7th. Commandment, Exodus 20:14 "Thou shalt not commit adultery."

The punishment - Leviticus 20:10 "And the man that committeth adultery with another man's wife, the adulterer and the adulteress shall be put to death."

8th. Commandment, Exodus 20:15 "Thou shalt not steal."

The punishment - Exodus 22:4 "If the thief be certainly found in his hand alive, whether it be ox, or ass, or sheep; he shall restore double."

The list of curses and punishments for not believing in God is long. Following the ten Commandments, which are also listed in Deuteronomy 5:7-21, there are a number of curses for not following the commandments. These curses are given in Deuteronomy 28: 17-68. Space does not permit all of them to be quoted, but a few are that the Lord will "smite thee" with consumption, fever, hemorrhoids, scab, madness, blindness, boils, and and many more even worse.

Words to live by?

Deuteronomy 14: 6-10, "If thy brother, the son of thy mother, or thy son, or thy daughter, or the wife of thy bosom, or thy friend, which is of thine own soul, entice thee secretly, saying, Let us go and serve other gods, which thou hast not known, thou, nor thy fathers; Thou shalt not consent unto him, nor hearken unto him; neither shall thine eye pity him, neither shalt thou spare, neither shalt thou conceal him: But thou shalt surely kill him; thine hand shall be first upon him to put him to death, and afterwards the hand of all the people. Thou shalt stone him with stones, that he die; because he hath sought to thrust thee away from the Lord thy God.

A FEW TEACHINGS FROM THE NEW TESTAMENT

Luke 19:27 "But those mine enemies, which would not that I should reign over them, bring hither, and slay them before me."

Revelations 2:21-23 Jesus says, "And I will kill her children with death."

Romans 1:29-32 "Being filled with all unrighteousness, fornication, wickedness, covetousness, maliciousness; full of envy, murder, debate, deceit, malignity; whisperers, backbiters, haters of God, despiteful, proud, boasters, inventors of evil things, disobedient to parents, without understanding, covenant breakers, without natural affection, implacable, unmerciful: Who knowing the judgment of God, that they which commit such things are worthy of death.

And finally

Malachi 2:1-4 "And now, O ye priests, this commandment is for you. If you will not hear, and if ye will not lay it to heart to give glory to my name...Behold, I will corrupt your seed, and spread dung upon your faces.