'Stiff necked' in the Bible
The Lord also said to Moses: “I have seen this people, and they are indeed a stiff-necked people.
Go up to a land flowing with milk and honey. But I will not go with you because you are a stiff-necked people; otherwise, I might destroy you on the way.”
For the Lord said to Moses: “Tell the Israelites: You are a stiff-necked people. If I went with you for a single moment, I would destroy you. Now take off your jewelry, and I will decide what to do with you.”
Then he said, “My Lord, if I have indeed found favor in Your sight, my Lord, please go with us. Even though this is a stiff-necked people, forgive our wrongdoing and sin, and accept us as Your own possession.”