Albert Barnes Commentary Deuteronomy 17:1

"Thou shalt not sacrifice unto Jehovah thy God an ox, or a sheep, wherein is a blemish, [or] anything evil; for that is an abomination unto Jehovah thy God." — Deuteronomy 17:1 (ASV)

This verse relates to the subject of the last chapter. It prohibits again that form of insult to God which consists in offering to him a blemished sacrifice.

Any evil-favoredness — This means any evil thing. The reference is to the faults or maims listed in Leviticus 22:22-24.