16 Therefore circumcise the foreskin of your heart, and be stiff-necked no longer.
Deuteronomy 10:16 (NKJV)
Comment:
Although we have coded this commandment green, it is perhaps not immediately clear how we should go about circumcising our hearts until we look further in scripture. Deuteronomy 30:6 indicates that YHWH Himself can circumcise our hearts and we understand that this means that our hearts would be set apart for Him, and in Romans 2:29 Paul talks about true circumcision being of the heart and spiritual, not literal.