'Covenant' in the Bible

And the angel of Jehovah came up from Gilgal to Bochim. And he said, I made you to go up out of Egypt, and have brought you unto the land which I sware unto your fathers; and I said, I will never break my covenant with you:

and ye shall make no covenant with the inhabitants of this land; ye shall break down their altars. But ye have not hearkened unto my voice: why have ye done this?

And the anger of Jehovah was kindled against Israel; and he said, Because this nation have transgressed my covenant which I commanded their fathers, and have not hearkened unto my voice;

And the children of Israel asked of Jehovah (for the ark of the covenant of God was there in those days,