The word(s) "towering" appears 4 time(s) in 4 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1) And remember We took your covenant and We raised above you (The towering height) of Mount (Sinai): (Saying): "Hold firmly to what We have given you and bring (ever) to remembrance what is therein: Perchance ye may fear Allah."

(2) And remember We took your covenant and We raised above you (the towering height) of Mount (Sinai): (Saying): "Hold firmly to what We have given you, and hearken (to the Law)": They said:" We hear, and we disobey:" And they had to drink into their hearts (of the taint) of the calf because of their Faithlessness. Say: "Vile indeed are the behests of your Faith if ye have any faith!"

(3) And for their covenant we raised over them (the towering height) of Mount (Sinai); and (on another occasion) we said: "Enter the gate with humility"; and (once again) we commanded them: "Transgress not in the matter of the sabbath." And we took from them a solemn covenant.

(4) So the Ark floated with them on the waves (towering) like mountains, and Noah called out to his son, who had separated himself (from the rest): "O my son! embark with us, and be not with the unbelievers!"