Deuteronomy 10:16

So circumcise [that is, remove sin from] your heart, and be stiff-necked (stubborn, obstinate) no longer.

Jeremiah 4:4


“Circumcise (dedicate, sanctify) yourselves to the Lord
And remove the foreskin [sins] of your heart,
Men of Judah and inhabitants of Jerusalem,
Or else My wrath will go forth like fire [consuming all that gets in its way]
And burn and there will be no one to quench it,
Because of the evil of your acts.”

Deuteronomy 9:6

“Know [without any doubt], that the Lord your God is not giving you this good land to possess because of your righteousness, for you are a stiff-necked (stubborn, obstinate) people.

Deuteronomy 30:6

“And the Lord your God will circumcise your heart and the hearts of your descendants [that is, He will remove the desire to sin from your heart], so that you will love the Lord your God with all your heart and all your soul, so that you may live [as a recipient of His blessing].

Leviticus 26:41

I also was acting with hostility toward them and brought them into the land of their enemies—then if their uncircumcised (sin-filled) hearts are humbled and they accept the punishment for their wickedness,

Romans 2:28-29

For he is not a [real] Jew who is only one outwardly, nor is [true] circumcision something external and physical.

Colossians 2:11

In Him you were also circumcised with a circumcision not made with hands, but by the [spiritual] circumcision of Christ in the stripping off of the body of the flesh [the sinful carnal nature],

Deuteronomy 9:13

Furthermore, the Lord said to me, ‘I have seen this people, and indeed, they are stiff-necked (stubborn, obstinate) people.

Deuteronomy 31:27

For I know your rebellion and contention and your stubbornness; behold, while I am still alive with you today, you have been rebellious against the Lord; how much more, then, after my death?

Jeremiah 4:14


O Jerusalem, wash your heart from wickedness,
That you may be saved.
How long will your wicked and immoral thoughts
Lodge within you?

James 4:6-7

But He gives us more and more grace [through the power of the Holy Spirit to defy sin and live an obedient life that reflects both our faith and our gratitude for our salvation]. Therefore, it says, “God is opposed to the proud and haughty, but [continually] gives [the gift of] grace to the humble [who turn away from self-righteousness].”

Treasury of Scripture Knowledge

Summary

Circumcise therefore the foreskin of your heart, and be no more stiffnecked.

Bible References

Stiff-necked

Deuteronomy 9:6
“Know [without any doubt], that the Lord your God is not giving you this good land to possess because of your righteousness, for you are a stiff-necked (stubborn, obstinate) people.
Deuteronomy 31:27
For I know your rebellion and contention and your stubbornness; behold, while I am still alive with you today, you have been rebellious against the Lord; how much more, then, after my death?
James 4:6
But He gives us more and more grace [through the power of the Holy Spirit to defy sin and live an obedient life that reflects both our faith and our gratitude for our salvation]. Therefore, it says, “God is opposed to the proud and haughty, but [continually] gives [the gift of] grace to the humble [who turn away from self-righteousness].”