The word(s) "believer" appears 651 time(s) in 556 verse(s) in Quran in Mohsin Khan translation.

(211) And (remember) when your Lord proclaimed: "If you give thanks (by accepting Faith and worshipping none but Allah), I will give you more (of My Blessings); but if you are thankless (i.e. disbelievers), verily My punishment is indeed severe."

(212) Their Messengers said to them: "We are no more than human beings like you, but Allah bestows His Grace to whom He wills of His slaves. It is not ours to bring you an authority (proof) except by the Permission of Allah. And in Allah (Alone) let the believers put their trust.

(213) And those who disbelieved, said to their Messengers: "Surely, we shall drive you out of our land, or you shall return to our religion." So their Lord revealed to them: "Truly, We shall destroy the Zalimun (polytheists, disbelievers and wrong-doers).

(214) And He gave you of all that you asked for, and if you count the Blessings of Allah, never will you be able to count them. Verily, man is indeed an extreme wrong-doer, a disbeliever (an extreme ingrate who denies Allah's Blessings by disbelief, and by worshipping others besides Allah, and by disobeying Allah and His Prophet Muhammad صلى الله عليه و سلم).

(215) "Our Lord! Forgive me and my parents, and (all) the believers on the Day when the reckoning will be established."

(216) And you will see the Mujrimun (criminals, disbelievers in the Oneness of Allah - Islamic Monotheism, polytheists) that Day Muqarranun (bound together) in fetters.

(217) How much would those who disbelieved wish that they had been Muslims [those who have submitted themselves to Allah's Will in Islam i.e. Islamic Monotheism - this will be on the Day of Resurrection when they will see the disbelievers going to Hell and the Muslims going to Paradise].

(218) We send not the angels down except with the truth (i.e. for torment), and in that case, they (the disbelievers) would have no respite!

(219) They (the angels) said: "We have been sent to a people who are Mujrimun (criminals, disbelievers, polytheists, sinners).

(220) Surely! Therein is indeed a sign for the believers.