12 verses have
say
in Edition Clear Qur'an by Talal Itani / Al-Ankaboot (The Spider)

29:2Have the people supposed that they will be left alone to say, “We believe,” without being put to the test?

29:10Among the people is he who says, “We have believed in God.” Yet when he is harmed on God’s account, he equates the people's persecution with God’s retribution. And if help comes from your Lord, he says, “We were actually with you.” Is not God aware of what is inside the hearts of the people?

29:12Those who disbelieve say to those who believe, “Follow our way, and we will carry your sins.” In no way can they carry any of their sins. They are liars.

29:20Say, “Roam the earth, and observe how He originated the creation.” Then God will bring about the next existence. God has power over all things.”

29:24But the only response from his people was their saying, “Kill him, or burn him.” But God saved him from the fire. Surely in that are signs for people who believe.

29:29You approach men, and cut off the way, and commit lewdness in your gatherings.” But the only response from his people was to say, “Bring upon us God’s punishment, if you are truthful.”

29:46And do not argue with the People of the Scripture except in the best manner possible, except those who do wrong among them. And say, “We believe in what was revealed to us, and in what was revealed to you; and our God and your God is One; and to Him we are submissive.”

29:50And they said, “If only a miracle from his Lord was sent down to him.” Say, “Miracles are only with God, and I am only a clear warner.”

29:52Say, “God suffices as witness between you and me. He knows everything in the heavens and the Earth. Those who believe in vanity and reject God—it is they who are the losers.”

29:55On the Day when the punishment will envelop them, from above them, and from beneath their feet, He will say, “Taste what you used to do!”

29:61And if you asked them, “Who created the heavens and the earth and regulated the sun and the moon?” They would say, “God.” Why then do they deviate?

29:63And if you asked them, “Who sends water down from the sky, with which He revives the earth after it had died?” They would say, “God.” Say, “Praise be to God.” But most of them do not understand.