The word(s) "messenger" appears 501 time(s) in 433 verse(s) in Quran in Mohsin Khan translation.

(341) And you will see them brought forward to it (Hell) made humble by disgrace, (and) looking with stealthy glance. And those who believe will say: "Verily, the losers are they who lose themselves and their families on the Day of Resurrection. Verily, the Zalimun [i.e. Al-Kafirun (disbelievers in Allah, in His Oneness and in His messenger صلى الله عليه و سلم, polytheists, wrong-doers)] will be in a lasting torment. (Tafsir At-Tabari).

(342) It is not given to any human being that Allah should speak to him unless (it be) by Revelation, or from behind a veil, or (that) He sends a messenger to reveal what He wills by His Leave. Verily, He is Most High, Most Wise.

(343) Nay, but I gave (the good things of this life) to these (polytheists) and their fathers to enjoy, till there came to them the truth (the Qur'an), and a messenger (Muhammad صلى الله عليه و سلم) making things clear.

(344) And ask (O Muhammad صلى الله عليه و سلم) those of Our messengers whom We sent before you: "Did We ever appoint alihah (gods) to be worshipped besides the Most Gracious (Allah)?"

(345) And indeed We did send Musa (Moses) with Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) to Fir'aun (Pharaoh) and his chiefs (inviting them to Allah's religion of Islam) He said: "Verily, I am a messenger of the Lord of the 'Alamin (mankind, jinn and all that exists)."

(346) Or do they think that We hear not their secrets and their private counsel? (Yes We do) and Our messengers (appointed angels in charge of mankind) are by them, to record.

(347) As a Command (or this Qur'an or the Decree of every matter) from Us. Verily, We are ever sending (the messengers),

(348) How can there be for them an admonition (at the time when the torment has reached them), when a messenger explaining things clearly has already come to them.

(349) Then they had turned away from him (messenger Muhammad صلى الله عليه و سلم) and said: (He is) one taught (by a human being), a madman!"

(350) And indeed We tried before them Fir'aun's (Pharaoh) people, when there came to them a noble messenger [i.e. Musa (Moses) عليه السلام],