Abram believed the Messiah who would come, and we can believe in the Messiah who has come.
When given the choice, Lot was more concerned with worldly success than with God’s blessing. He chose the Jordan Valley which was lush and fertile, but it wasn’t part of the land of promise and blessing.
Melchizedek is introduced for the first time. He was a mysterious priest of God. See Hebrews 7.
“Scripture tells us that Abram’s faith was counted to him as righteousness. This does not mean that he was made righteous by his faith, but God imputed, or credited, righteousness to him because of his faith. In the same way, Jesus imputes His righteousness to us when we trust in Him for our salvation.”
In chapter 15, the animals were a part of a covenant ceremony. The animals were cut in half and a pathway was made between them. The lesser nation’s ruler would walk between the animals, essentially saying “if I break this covenant, let what happened to these animals happen to me.“
During Abraham’s dream, God accepts the curse on Himself if the covenant was broken. It points to Christ’s death. We broke the covenant of “works”. Our covenant “curse” is death. When we trust in Jesus, He takes the curse on Himself and gives us the blessing of the covenant, which is eternal life with Him.
The Story of Redemption, Volume 1 | Genesis - 2 Samuel by The Daily Grace Co.