'Covenant' in the Bible

I said,Yahweh, the God of heaven, the great and awe-inspiring God who keeps His gracious covenant with those who love Him and keep His commands,

You found his heart faithful in Your sight,and made a covenant with himto give the land of the Canaanites,Hittites, Amorites, Perizzites,Jebusites, and Girgashites—to give it to his descendants.You have kept Your promise,for You are righteous.

So now, our God—the great, mighty,and awe-inspiring God who keeps His gracious covenant—do not view lightly all the hardships that have afflicted us,our kings and leaders,our priests and prophets,our ancestors and all Your people,from the days of the Assyrian kings until today.

Remember them, my God, for defiling the priesthood as well as the covenant of the priesthood and the Levites.