'Which I Swore' in the Bible

And I will bring you into the land, concerning which I swore to give it to Abraham, to Isaac, and to Jacob; and I will give it to you for a heritage: I am the LORD.

And the LORD said to Moses, Depart and go up hence, thou and the people which thou hast conducted from the land of Egypt, to the land which I swore to Abraham, to Isaac, and to Jacob, saying, to thy seed will I give it: