'My Covenant' in the Bible

and also I have established My covenant with them, to give to them the land of Canaan, the land of their sojournings, wherein they have sojourned;

and also I have heard the groaning of the sons of Israel, whom the Egyptians are causing to serve, and I remember My covenant.

And now, if ye really hearken to My voice, then ye have kept My covenant, and been to Me a peculiar treasure more than all the peoples, for all the earth is Mine;