'Promises of God' in the Bible

For all the promises of God, whatever their number, have their confirmation in Him; and for this reason through Him also our "Amen" acknowledges their truth and promotes the glory of God through our faith.

God, however, is only one. Is the Law then opposed to the promises of God? No, indeed; for if a Law had been given which could have conferred Life, righteousness would certainly have come by the Law.