God built fatherhood into man’s nature. God made man and blessed him for fatherhood. “Be fruitful and multiply and fill the earth and subdue it” (Gen. 1.28). Man was made for fatherhood. The man we call Abraham is—as you can see from today’s Old Testament reading (Gen. 15:1-6)—originally named Abram. Abram means “exalted father.” That refers to God, Our Father. Abram, named for the Father, wants to be a father himself. Abram wants a son. But he is old, and his wife is old. Some of you know how difficult it can be to conceive a child. And as the years go by, you feel worthless, and hopeless. That’s where Abram and his wife Sarai are. They didn’t have the many options that confront…