After the disclose that Abraham's heir was still in the future not his current son,somehow his reaction seemed peevish and one of disappointment
Genesis 17 NASB
” 17 Then Abraham fell on his face and laughed, and said in his heart, “Will a child be born to a man one hundred years old? And will Sarah, who is ninety years old, bear a child?” 18 And Abraham said to God, “Oh that Ishmael might live before You!”
Was Abraham initial disappointed?