18:19 I have chosen him, that he may. The Hebrew word translated “chosen” here means “chosen in love.” The purpose of God’s sovereign and gracious election is that His people might be holy and righteous in His sight (Eph. 1:4).
that the Lord . . . what he has promised. Those promises claimed by Abraham in faith must be claimed by his descendants as well. Their hope in God’s covenant will be demonstrated by their covenant obedience. God’s plan will be realized through the covenant faithfulness of His people (22:18; 26:4, 5). See note 17:2.