ISB ~ 2 Corinthians 3 v3

the Spirit:Engraved on the tablet of the believing heart. This divine work is even more magnificent than the writing of the Ten Commandments on stone (Ex 31:18).

• Paul is drawing from two prophecies about the messianic age. Writing on the heart evokes Jeremiah’s promise that God will ratify a new covenant and inscribe his law on the hearts of his people (Jer 31:31-34). The contrast between stone and human hearts evokes Ezekiel’s promise that God will replace the stony hearts of his people with fleshly hearts that are ready to obey him through the Spirit (Ezek 11:19; 36:26-27).