Deuteronomy 13:8

8 you are not to consent, and you are not to listen to him; and you must not pity him or spare him; and you may not conceal him.

Deuteronomy 13:8 Meaning and Commentary

Deuteronomy 13:8

Thou shall not consent unto him
To commit the idolatry enticed unto, or join with him in it:

nor hearken to him;
not so much as patiently to hear him, but at once express an abhorrence of and indignation at what he recommends:

neither shall thine eye pity him;
pitied he might be for his ignorance, stupidity, and wickedness, and on account of the miserable estate and condition he was in, and of those dreadful consequences which would follow upon it, if not converted from it; but no mercy was to be shown him on account of nearness of relation:

neither shall thou spare;
to reprove him sharply and to expose him to public vengeance:

neither shall thou conceal him;
neither him nor his sin, but make both public, acquaint others with it, and endeavour to bring him before the civil magistrate to be examined, tried, and judged; so far should they be from hiding his offence from others, or excusing and extenuating it, or from harbouring his person privately when sought for upon information.

Deuteronomy 13:8 In-Context

6 "If your brother the son of your mother, or your son, or your daughter, or your wife whom you love, or your friend who means as much to you as yourself, secretly tries to entice you to go and serve other gods, which you haven't known, neither you nor your ancestors -

7 gods of the peoples surrounding you, whether near or far away from you, anywhere in the world -

8 you are not to consent, and you are not to listen to him; and you must not pity him or spare him; and you may not conceal him.

9 Rather, you must kill him! Your own hand must be the first one on him in putting him to death, and afterwards the hands of all the people.

10 You are to stone him to death; because he has tried to draw you away from ADONAI your God, who brought you out of the land of Egypt, out of a life of slavery.