'Covenant and Mercy' in the Bible

And I said, I pray You, O Jehovah, the God of Heaven, the great and awesome God who keeps covenant and mercy for those who love Him and keep His commandments;

And now, our God, the great, the mighty, and the fearful God, who keeps covenant and mercy, let not all the trouble that has come upon us, on our kings, on our rulers, 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 to this day, seem little before You.