Deuteronomy 7:11

Thou shalt therefore keep the commandments and the statutes and the judgments which I command thee this day, to do them, because Jehovah, the faithful covenant God, is equally energetic in mercy and in holiness. We Christians should also never forget that God has chosen us out of the world of unbelievers, not because we are in any way better than others, but out of pure goodness and mercy. Therefore we should thank God for this unmerited mercy, serve and obey Him, and keep His covenant with all faithfulness.