'Covenant' in the Bible

and saith, 'I cause you to come up out of Egypt, and bring you in unto the land which I have sworn to your fathers, and say, I do not break My covenant with you to the age; and ye -- ye make no covenant with the inhabitants of this land -- their altars ye break down; and ye have not hearkened to My voice -- what is this ye have done?

And the anger of Jehovah doth burn against Israel, and He saith, 'Because that this nation have transgressed My covenant which I commanded their fathers, and have not hearkened to My voice --

And the sons of Israel ask of Jehovah, -- and there is the ark of the covenant of God in those days,