4 verses have
heart
in Edition Clear Qur'an by Talal Itani / Az-Zumar (The Groups)

39:7If you disbelieve, God is Independent of you, yet He does not approve ingratitude on the part of His servants. And if you are thankful, He will approve that in you. No bearer of burden can bear the burden of another. Then to your Lord is your return; and He will inform you of what you used to do. He is aware of what the hearts contain.

39:22What about someone whose heart God has opened to Islam, so that he follows a light from His Lord? Woe to those whose hearts are hardened against the mention of God. Those are in manifest error.

39:23God has sent down the best of narrations: a Scripture consistent and paired. The skins of those who reverence their Lord shiver from it, then their skins and their hearts soften up to the remembrance of God. Such is God’s guidance; He guides with it whomever He wills. But whomever God leaves astray, for him there is no guide.

39:45When God alone is mentioned, the hearts of those who do not believe in the Hereafter shrink with resentment. But when those other than Him are mentioned, they become filled with joy.