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FORTOLD IN THE OLD AND NEW TESTAMENT SCRIPTURES….
DEUTERONOMY 30:6 [6] And the LORD your God will CIRCUMCISE YOUR HEART AND THE HEART OF YOUR DECENDENCE, TO LOVE THE LORD YOUR GOD WITH ALL YOUR HEART AND WITHYOU’RE YOUR SOUL, THAT YOU MAY LIVE.
JEREMIAH 4:4 [4] CIRCUMCISE YOURSELF TO THE LORD, AND TAKE AWAY THE FORESKINS OF YOUR HEART, you men of Judah and inhabitants of Jerusalem: lest my fury come forth like fire, and burn that none can quench it, because of the evil of your doings.
DEUTERONOMY 10:16 [16] CIRCUMCISE therefore THE FORESKIN OF YOUR HEART, and be no more stiff-necked.
NEW COVENANT FULFILLMENT of the SHADOWS of the CEREMONIAL ORDINANCE of CIRCUMCISION pointing the CIRCUMCISION of the HEART through faith in Christ…
ROMANS 2:25 [25] For circumcision verily profits, if you keep the law: but if you are a breaker of the law, your circumcision is made uncircumcision. [26], Therefore if the uncircumcision keeps the righteousness of the law, shall not his uncircumcision be counted for circumcision? [27], And shall not uncircumcision which is by nature, if it fulfils the law, judge you, who by the letter and circumcision do transgress the law? [28], FOR HE IS NOT A JEW, WHO IS ONE; NEITHER IS THAT CIRCUMCISION, WHICH IS OF THE OUTWARD FLESH: [29], BUT HE IS A JEW WHICH IS ONE INWARDLY; AND CIRCUMCISION IS THAT OF THE HEART, IN THE SPIRIT AND NOT IN THE LETTER; WHOSE PRAISE IS NOT OF MEN BUT OF GOD.
1 CORITHIANS 7:19 [19] CIRCUMCISION IS NOTHING, AND UNCIRCUMCISION IS NOTHING, BUT THE KEEPING OF THE COMMANDMENTS OF GOD.
This is the operation of GOD in the NEW COVENANT…
HEBREWS 8 [10], For this is the covenant that I will make with the house of Israel after those days, says the Lord; I WILL PUT MY LAWS INTO THEIR MINDS, AND WRITE THEM IN THEIR HEARTS: and I will be to them a God, and they shall be to me a people
Hope this helps