John Calvin on Deuteronomy 17:13

13. And all the people. He shews from the object of the enactment why the proud despisers (of the priests) were not to be spared; for punishments have reference to common example, whilst, on the other hand, impunity is a bait to sin, and the nurse of unbridled licentiousness. And, assuredly, when He commands that the whole people should be inspired with terror, it is a hint that, unless presumption should be corrected, and the bold and wicked should be restrained by severe discipline, the door would be opened to them to destroy the Church.

Deuteronomy 13

Deuteronomy 13:6-11

6. 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 as thine own soul, entice thee secretly, saying, Let us go and serve other gods, which thou hast not known, thou, nor thy fathers;

6. Si incitaverit te frater tuus, filius matris tuae, aut filia tua, aut filia tua, aut uxor complexus tui, aut amicus tuus qui sit sicut anima tua, clam dicendo, Eamus et colamus deos alienos quos non noveris neque tu, neque patres tui:

7. Namely, of the gods of the people which are round about you, nigh unto thee, or far off from thee, from the one end of the earth even unto the other end of the earth;

7. E diis populorum qui sunt in circuitu vestro, sive propinqui sint, sive remoti a te, ab extremo regionis usque ad extremum ejus:

8. 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:

8. Non acquiesces ei, neque obedies ei, nec parcet ei oculus tuus, neque misereberis, neque occultabis eum:

9. 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.

9. Sed occidendo occides eum: manus tua erit in eum prima ad ipsum interficiendum, deinde manus universi populi.

10. And thou shalt stone him with stones, that he die; because he hath sought to thrust thee away from the LORD thy God, which brought thee out of the land of Egypt, from the house of bondage.

10. Et lapidabis eum lapidibus et morietur: quia quaesivit te abstrahere a Jehova Deo tuo, qui eduxit te e terra AEgypti, e domo servorum

11. And all Israel shall hear, and fear, and shall do no more any such wickedness as this is among you.

11. Ut totus Israel audiant et timeant, nec addant facere quicquam simile huic rei pravae in medio tui