Mal 1:7

1:7 polluted food. The reference is to animal sacrifices (v. 8). “Polluted” means ceremonially unclean and therefore unacceptable. God is not offended merely by ceremonial imperfections but by the attitude of contempt behind such imperfect sacrifices (Gen. 4:3–5 and notes; Heb. 11:4).

the Lord’s table. This phrase, and the similar phrase in v. 12, occur only here in the Old Testament, both times referring to the altar.