The word(s) "believer" appears 350 time(s) in 314 verse(s) in Quran in Muhammad Pickthal translation.

(141) They said: O Hud! Thou hast brought us no clear proof and we are not going to forsake our gods on thy (mere) saying, and we are not believers in thee.

(142) That which Allah leaveth with you is better for you if ye are believers; and I am not a keeper over you.

(143) And all that We relate unto thee of the story of the messengers is in order that thereby We may make firm thy heart. And herein hath come unto thee the Truth and an exhortation and a reminder for believers.

(144) He said: The food which ye are given (daily) shall not come unto you but I shall tell you the interpretation ere it cometh unto you. This is of that which my Lord hath taught me. Lo! I have forsaken the religion of folk who believe not in Allah and are disbelievers in the Hereafter.

(145) Unto Him is the real prayer. Those unto whom they pray beside Allah respond to them not at all, save as (is the response to) one who stretcheth forth his hands toward water (asking) that it may come unto his mouth, and it will never reach it. The prayer of disbelievers goeth (far) astray.

(146) Thus We send thee (O Muhammad) unto a nation, before whom other nations have passed away, that thou mayst recite unto them that which We have inspired in thee, while they are disbelievers in the Beneficent. Say: He is my Lord; there is no Allah save Him. In Him do I put my trust and unto Him is my recourse.

(147) A similitude of the Garden which is promised unto those who keep their duty (to Allah): Underneath it rivers flow; its food is everlasting, and its shade; this is the reward of those who keep their duty, while the reward of disbelievers is the Fire.

(148) Those who were before them plotted; but all plotting is Allah's. He knoweth that which each soul earneth. The disbelievers will come to know for whom will be the sequel of the (heavenly) Home.

(149) Allah, unto Whom belongeth whatsoever is in the heavens and whatsoever is in the earth. and woe unto the disbelievers from an awful doom;

(150) Their messengers said unto them: We are but mortals like you, but Allah giveth grace unto whom He will of His slaves. It is not ours to bring you a warrant unless by the permission of Allah. In Allah let believers put their trust!