Another interpretation: AND YOUR HUMILITY HAS MAGNIFIED ME: R. Julianus ben Tiberinus said in the name of R. Isaac: See the humility of the Holy One. See what is written (in Exod. 19:19): MOSES SPOKE, AND GOD ANSWERED HIM OUT LOUD. Should it not rather have said, "God spoke, and Moses answered him out loud"? He did not do that. Instead, MOSES SPOKE, AND GOD ANSWERED HIM. Ergo: AND YOUR HUMILITY HAS MAGNIFIED ME.
Moses Spoke and God Answered Him Out Loud
Midrash Tanchuma Buber, Bereshit 4:3