Exodus 34:10
Yahweh Cuts a Covenant with Israel
10 Then God said, “Behold, aI am going to cut a covenant. Before all your people bI will do wondrous deeds which have not been created in all the earth nor among any of the nations; and all the people among whom you live will see the working of Yahweh, for it is a fearful thing that I am going to do with you.