The word(s) "believing" appears 69 time(s) in 49 verse(s) in Quran in Muhammad Habib Shakir translation.

(31) And what she worshipped besides Allah prevented her, surely she was of an unbelieving people.

(32) Surely the men who submit and the women who submit, and the believing men and the believing women, and the obeying men and the obeying women, and the truthful men and the truthful women, and the patient men and the patient women and the humble men and the humble women, and the almsgiving men and the almsgiving women, and the fasting men and the fasting women, and the men who guard their private parts and the women who guard, and the men who remember Allah much and the women who remember-- Allah has prepared for them forgiveness and a mighty reward.

(33) And it behoves not a believing man and a believing woman that they should have any choice in their matter when Allah and His Apostle have decided a matter; and whoever disobeys Allah and His Apostle, he surely strays off a manifest straying.

(34) O you who believe! when you marry the believing women, then divorce them before you touch them, you have in their case no term which you should reckon; so make some provision for them and send them forth a goodly sending forth.

(35) O Prophet! surely We have made lawful to you your wives whom you have given their dowries, and those whom your right hand possesses out of those whom Allah has given to you as prisoners of war, and the daughters of your paternal uncles and the daughters of your paternal aunts, and the daughters of your maternal uncles and the daughters of your maternal aunts who fled with you; and a believing woman if she gave herself to the Prophet, if the Prophet desired to marry her-- specially for you, not for the (rest of) believers; We know what We have ordained for them concerning their wives and those whom their right hands possess in order that no blame may attach to you; and Allah is Forgiving, Merciful.

(36) And those who speak evil things of the believing men and the believing women without their having earned (it), they are guilty indeed of a false accusation and a manifest sin.

(37) So Allah will chastise the hypocritical men and the hypocritical women and the polytheistic men and the polytheistic women, and Allah will turn (mercifully) to the believing men and believing women, and Allah is Forgiving, Merciful.

(38) Surely he was of Our believing servants.

(39) Surely he was one of Our believing servants.

(40) Surely they were both of Our believing servants.