And I will give them one heart, and a new spirit I shall put inside them; and I shall certainly remove the heart of stone from their flesh and give them a heart of flesh, in order that they may walk in my own statutes and keep my own judicial decisions and actually carry them out; and they may really become my people and I myself may become their God.”

Jehovah has given them a “heart of flesh,” not hard like stone but one that moves them to observe his commandments because of love for him. He also put a “new spirit,” that is, his holy spirit, inside them. Hence its fruitage​—love, joy, peace, long-suffering, goodness, kindness, faith, mildness and self-control—​is manifest in their lives. They have indeed become Jehovah’s people and He has become their God.