'Covenant and Mercy' in the Bible

Know therefore that the LORD your God, he is God, the faithful God, who keeps covenant and mercy with them that love him and keep his commandments to a thousand generations;

And he said, LORD God of Israel, there is no God like you, in heaven above, or on earth beneath, who keeps covenant and mercy with your servants that walk before you with all their heart:

And said, I beseech you, O LORD God of heaven, the great and awesome God, that keeps covenant and mercy for them that love him and observe his commandments:

Now therefore, our God, the great, the mighty, and the awesome God, who keeps covenant and mercy, let not all the trouble seem little before you, that has come upon us, on our kings, on our princes, and on our priests, and on our prophets, and on our fathers, and on all your people, since the time of the kings of Assyria unto this day.

And I prayed unto the LORD my God, and made my confession, and said, O Lord, the great and awesome God, keeping the covenant and mercy to them that love him, and to them that keep his commandments;