Just for the sake of quoting one of the best mixed metaphors in the entire Bible, let's quote the whole verse:
Deut. 10:16
Circumcise therefore the foreskin of your heart, and be no more stiffnecked.
I don't know who to blame more for that one, Moses or the KJV translators.
Is there any reason why you would fixate on images involving circumcision given that the New Testament did away with all such physical requirements?
1 Cor. 7:19
Circumcision is nothing, and uncircumcision is nothing, but the keeping of the commandments of God.
But we should go back a few verses, up there in Deuteronomy, and see what else it says:
12 ¶ And now, Israel, what doth the LORD thy God require of thee, but to fear the LORD thy God, to walk in all his ways, and to love him, and to serve the LORD thy God with all thy heart and with all thy soul,Funny, I don't see any requirement there to subscribe to the theological/botanical "TULIP" theories of the revered-as-a-prophet-although-you-deny-it John Calvin.
13 To keep the commandments of the LORD, and his statutes, which I command thee this day for thy good?
Huh! I guess that this verse too must be wrong according to "latter-day revelation."
Is there any reason why you would fixate on images involving circumcision given that the New Testament did away with all such physical requirements?
Ummm!, I hate to tell you but God did not do away with circumcision of the heart, unless you think that Paul was just kidding in Romans. I know that Romans is a tough Epistle for the haters of the Bible to swallow. Paul was such a comedian. He should have appeared with Bob Hope! The verse you are abusing in Corinthians is talking about that little piece of flesh between your legs and Deut. is talking about the heart.
So, please answer the question. How is this accomplished?