Exodus 23:27

23:27 “I will send my terror before you, and I will destroy all the people whom you encounter; I will make all your enemies turn their backs to you.

Exodus 32:9

32:9 Then the Lord said to Moses: “I have seen this people. Look what a stiff-necked people they are!

Exodus 33:3

33:3 Go up to a land flowing with milk and honey. But I will not go up among you, for you are a stiff-necked people, and I might destroy you on the way.”