Genesis 15:4-6 - He counted it to him as righteousness

15:4

“This man shall not be your heir ...” We need to be aware that our thinking is often deeply mistaken because it omits God. Abraham’s reasoning made perfect sense, looking at the objective facts no other conclusion could be reached. Yet it was wrong. So God corrects Abram. A servant would not inherit from Abram, but he would have a son from his own body.

15:5

In Gen 13:16 God had told Abram that his descendants would be more numerous than the grains of sand in the desert. Now He gives him another illustration, this time looking up at the stars and tells him that his offspring would be more numerous than the stars in the sky. We need to beware of leaning on our own understanding, for our own understanding is very limited (Prov 3:5,6).

15:6

“He believed the Lord, and He counted it to him as righteousness.” This is perhaps the most important verse in the account of Abraham. It is certainly one that the New Testament makes much of, especially Paul with it forming the basis for the book of Galatians. James also quotes this verse. We need to base our lives on what God has said, to believe what God has said.