Genesis 21:1-21 The Son of Promise If you have your Bibles I'd invite you to turn with me to Genesis, chapter 21. A great suspense has been building ever since we heard the announcement in Genesis 12 that the Lord was going to fulfill His promises to Abraham by making Him a father. The father of many nations. And our hopes were momentarily gotten up when the birth of Ishmael came, but it was quickly apparent that this was not God's plan for the extension of His covenant family, and so we have been waiting patiently for almost ten chapters and for a quarter of a century. And perhaps it feels like it as we move slowly through these chapters of Genesis. Perhaps you've gotten a taste of the suspense even in the time that we have slowly moved through these passages. But tonight we…