For.

Deuteronomy 9:6
Understand, then, that it is not by your righteousness that the LORD your God is giving you this good land to possess, for you are a stiff-necked people.

Deuteronomy 31:27
For I know how rebellious and stiff-necked you are. If you are already rebelling against the LORD while I am still alive, how much more will you rebel after my death!

Nehemiah 9:16, 17, 26
But they and our fathers became arrogant and stiff-necked and did not obey Your commandments. . . .

Matthew 19:8
Jesus answered, "It was because of your hardness of heart that Moses permitted you to divorce your wives; but it was not this way from the beginning.

Acts 7:51
You stiff-necked people with uncircumcised hearts and ears! You always resist the Holy Spirit, just as your fathers did.

Hebrews 3:7-10
Therefore, as the Holy Spirit says: "Today if you hear His voice, . . .