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

39:9Is he who worships devoutly during the watches of the night, prostrating himself and standing up, mindful of the Hereafter, and placing his hope in the mercy of his Lord? Say, “Are those who know and those who do not know equal?” Only those possessed of reason will remember.

39:38And if you asked them, “Who created the heavens and the earth?” they would say, “God.” Say, “Have you seen those you pray to instead of God? If God willed any harm for me, can they lift His harm? And if He willed a blessing for me, can they hold back His mercy?” Say, “God suffices for me. On Him the reliant rely.”

39:53Say, “O My servants who have transgressed against themselves: do not despair of God’s mercy, for God forgives all sins. He is indeed the Forgiver, the Clement.”