A new heart also will I give you, and a new spirit will I put within you; and I will take away the stony heart out of your flesh, and I will give you a heart of flesh.
I will give them a heart to know me, that I am the LORD: and they shall be my people, and I will be their God; for they shall return to me with their whole heart.
Cast away from you all your transgressions, in which you have transgressed; and make you a new heart and a new spirit: for why will you die, house of Yisra'el?
Yes, they made their hearts as hard as flint, lest they might hear the law, and the words which the LORD of Armies had sent by his Spirit by the former prophets. Therefore great wrath came from the LORD of Armies.
But we all, with unveiled face beholding as in a mirror the glory of the Lord, are transformed into the same image from glory to glory, even as from the Lord, the Spirit.
being revealed that you are a letter of Messiah, served by us, written not with ink, but with the Spirit of the living God; not in tablets of stone, but in tablets that are hearts of flesh.
The LORD your God will circumcise your heart, and the heart of your seed, to love the LORD your God with all your heart, and with all your soul, that you may live.