Charles Spurgeon Commentary Genesis 24:15

"And it came to pass, before he had done speaking, that, behold, Rebekah came out, who was born to Bethuel the son of Milcah, the wife of Nahor, Abraham`s brother, with her pitcher upon her shoulder." — Genesis 24:15 (ASV)

And it came to pass, before he had done speaking,

Indeed, he did not know that promise, While they are yet speaking I will hear; but God keeps His promises before He makes them, and, therefore, I am sure He will keep them after He has made them.