In this lesson Sing, O Barren, Thou That Didst Not Bear, God was talking to Abram about a multiplicity of blessing before he had his first child. God calls those things that be not as though they were. Our God has a method to the madness of the times in which we live. We pray for the end result of the promises, we ask him for oak trees, but He answers with acorns!  God is a God that would seed and He knows that in the acorn is the oak tree!  You must be persistent enough to understand when He has answered you.  Words are powerful!