'Promises' in the Bible

faithless to their promises, without natural affection, without human pity.

To them belongs recognition as God's sons, and they have His glorious Presence and the Covenants, and the giving of the Law, and the Temple service, and the ancient Promises.

My meaning is that Christ has become a servant to the people of Israel in vindication of God's truthfulness-- in showing how sure are the promises made to our forefathers--