2 Sarah became pregnant and bore a son to Abraham in his old age, at the very time God had promised him.
The joy that must have filled this household that day! All those years of marriage, all those attempts to get pregnant, and now when you are 90 years old, you give birth to a son. A son, the most prized child! A son to carry on your name! The ridicule because of your inability to have children now becomes joyous laughter as your neighbors and friends celebrate your old-age birth. CNN would be there. There would be book deals and corporate sponsorships, if we played our cards right. Remember the woman who was going through the sex change operation and she got pregnant and how the news covered that, as though it were some strange thing for an individual with all the correct plumbing to get pregnant. They billed it “man gets pregnant”, but it really was “woman gets pregnant”! There was nothing unusual about the whole thing. A woman was giving birth, a woman in her childbearing years. But our text today tells of this woman, who by anyone’s standards was past, way past childbearing years, and she not only gets pregnant, but also gives birth. And in that culture she gives her husband exactly what he wants, a son. And all of this happens as a result of the Lord’s direct intervention in their lives. This son is a result of God’s working. Abraham and Sarah had tried for years, probably decades, to have children. Their desperation even lead to the original artificial insemination. We look at Hagar and Ishmael and think how strange, but this was a culturally acceptable practice. But now Sarah has become the bearer of a son of promise. Through this son the world would be blessed. Isaac is the descendant of Adam, and the ancestor of Jesus. He becomes the link between fall and fulfillment. Without him, the line would have been broken.
The Arnold Journey 