7 verses have
Messenger
in Edition Clear Qur'an by Talal Itani / Al-Hadid (The Iron)

57:7Believe in God and His Messenger, and spend from what He made you inherit. Those among you who believe and give will have a great reward.

57:8What is the matter with you that you do not believe in God, when the Messenger calls you to believe in your Lord, and He has received a pledge from you, if you are believers?

57:19Those who believe in God and His messengers—these are the sincere and the witnesses with their Lord; they will have their reward and their light. But as for those who disbelieve and deny Our revelations—these are the inmates of the Blaze.

57:21Race towards forgiveness from your Lord; and a Garden as vast as the heavens and the earth, prepared for those who believe in God and His messengers. That is the grace of God; He bestows it on whomever He wills. God is the Possessor of Immense Grace.

57:25We sent Our messengers with the clear proofs, and We sent down with them the Book and the Balance, that humanity may uphold justice. And We sent down iron, in which is violent force, and benefits for humanity. That God may know who supports Him and His messengers invisibly. God is Strong and Powerful.

57:27Then We sent in their wake Our messengers, and followed up with Jesus son of Mary, and We gave him the Gospel, and instilled in the hearts of those who followed him compassion and mercy. But as for the monasticism which they invented—We did not ordain it for them—only to seek God’s approval. But they did not observe it with its due observance. So We gave those of them who believed their reward, but many of them are sinful.

57:28O you who believe! Fear God, and believe in His Messenger: He will give you a double portion of His mercy, and will give you a light by which you walk, and will forgive you. God is Forgiving and Merciful.