purposed in his heart. made up his mind. Compare Proverbs 23:7.
defile himself, &c. This was because meat was killed with the blood (contrary to Leviticus 3:17; Leviticus 7:26; Leviticus 17:10-14; Leviticus 19:26), and offered to idols (Exodus 34:15; 1 Corinthians 10:20. Compare Acts 15:29). Not because they were acting on vegetarian and temperance principles.