The word(s) "staunch" appears 5 time(s) in 5 verse(s) in Quran in Muhammad Pickthal translation.

(1) Yet of mankind are some who take unto themselves (objects of worship which they set as) rivals to Allah, loving them with a love like (that which is the due) of Allah (only) - those who believe are stauncher in their love for Allah - Oh, that those who do evil had but known, (on the day) when they behold the doom, that power belongeth wholly to Allah, and that Allah is severe in punishment!

(2) They are not all alike. Of the People of the Scripture there is a staunch community who recite the revelations of Allah in the night season, falling prostrate (before Him).

(3) O ye who believe! Be ye staunch in justice, witnesses for Allah, even though it be against yourselves or (your) parents or (your) kindred, whether (the case be of) a rich man or a poor man, for Allah is nearer unto both (them ye are). So follow not passion lest ye lapse (from truth) and if ye lapse or fall away, then lo! Allah is ever Informed of what ye do.

(4) He would have led us far away from our gods if we had not been staunch to them. They will know, when they behold the doom, who is more astray as to the road.

(5) The chiefs among them go about, exhorting: Go and be staunch to your gods! Lo! this is a thing designed.