= Was Abraham justified by faith?

No. Genesis 26:3-5, the Covenant of Isaac, states:



* 1 And there was a famine in the land, besides the first famine that was in the days of Abraham. And Isaac went unto Abimelech king of the Philistines, in Gerar.
* 2 And the LORD appeared unto him, and said, “Do not go down into Egypt; dwell in the land which I shall show you; 
* 3 sojourn in this land, and I will be with you, and will bless you; for unto you and your seed I will give all these lands, and I will establish the oath which I swore to Abraham your father;
* 4 and I will multiply your seed as the stars of heaven, and will give to your seed all these lands; and in your seed shall all the nations of the earth [a]be blessed;
* 5 **because Abraham obeyed my voice, and kept my charge, my commandments, my statutes, and my laws.”**