Acts 7:51

You stubborn people, with heathen hearts and ears, you are always opposing the holy Spirit, just as your forefathers did!

Romans 5:20-21

Then law slipped in, and multiplied the offense. But greatly as sin multiplied, God's mercy has far surpassed it,

Treasury of Scripture Knowledge

Summary

Understand therefore, that the LORD thy God giveth thee not this good land to possess it for thy righteousness; for thou art a stiffnecked people.

A stiff-necked

Bible References

A stiff-necked

Acts 7:51
You stubborn people, with heathen hearts and ears, you are always opposing the holy Spirit, just as your forefathers did!
Romans 5:20
Then law slipped in, and multiplied the offense. But greatly as sin multiplied, God's mercy has far surpassed it,