Acts 7:51

Stiff necked, and uncircumcised in heart and ears, you always fight against the Holy Spirit; as your fathers did, you also do.

Romans 5:20-21

For the law supervened that the fall might abound; but where the sin abounded the grace was superabundant,

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
Stiff necked, and uncircumcised in heart and ears, you always fight against the Holy Spirit; as your fathers did, you also do.
Romans 5:20
For the law supervened that the fall might abound; but where the sin abounded the grace was superabundant,