Being called a “rock head” is generally not a good thing. However, anything can be redeemed.
Isaiah has a part where the Messiah is prophetically talking in the future and says:
“For the Lord GOD will help me; therefore shall I not be confounded: therefore have I set my face like a flint, and I know that I shall not be ashamed.”
Setting your face like a flint means to have a determined, unmoving tunnel vision. He knew what to do and that’s what He was going to do. No mater how bad it might look or who opposed Him, He was listening to His Father.
He was a rock head in the best sense of the word. Wouldn’t it be great to know the Word so well that we know just what to do? Wouldn’t it be great to know God so well that nothing could stop us from doing what He said?
This is what our Savior did on our behalf. Let us indeed follow in His steps.