The word(s) "faithful" appears 37 time(s) in 30 verse(s) in Quran in Muhammad Habib Shakir translation.

(11) Surely Allah has bought of the believers their persons and their property for this, that they shall have the garden; they fight in Allah's way, so they slay and are slain; a promise which is binding on Him in the Taurat and the Injeel and the Quran; and who is more faithful to his covenant than Allah? Rejoice therefore in the pledge which you have made; and that is the mighty achievement.

(12) This is that he might know that I have not been unfaithful to him in secret and that Allah does not guide the device of the unfaithful.

(13) And the king said: Bring him to me, I will choose him for myself. So when he had spoken with him, he said: Surely you are in our presence today an honorable, a faithful one.

(14) Surely Allah will defend those who believe; surely Allah does not love any one who is unfaithful, ungrateful.

(15) Surely I am a faithful apostle to you;

(16) Surely I am a faithful apostle to you;

(17) Surely I am a faithful apostle to you

(18) Surely I am a faithful apostle to you;

(19) Surely I am a faithful apostle to you;

(20) The faithful Spirit has descended with it,