The word(s) "depths" appears 18 time(s) in 16 verse(s) in Quran in Abdullah Yusuf Ali translation.

(11) Or, Who guides you through the depths of darkness on land and sea, and Who sends the winds as heralds of glad tidings, going before His Mercy? (Can there be another) god besides Allah?- High is Allah above what they associate with Him!

(12) He it is Who sends blessings on you, as do His angels, that He may bring you out from the depths of Darkness into Light: and He is Full of Mercy to the Believers.

(13) Nor are the depths of Darkness and the Light;

(14) When the earth shall be shaken to its depths,

(15) He is the One Who sends to His Servant Manifest Signs, that He may lead you from the depths of Darkness into the Light and verily Allah is to you most kind and Merciful.

(16) An Messenger, who rehearses to you the Signs of Allah containing clear explanations, that he may lead forth those who believe and do righteous deeds from the depths of Darkness into Light. And those who believe in Allah and work righteousness, He will admit to Gardens beneath which Rivers flow, to dwell therein for ever: Allah has indeed granted for them a most excellent Provision.