1 Corinthians 2:10
But God hath revealed them unto us by his Spirit: for the Spirit searcheth all things, yea, the deep things of God.
1 Corinthians 2:9
But as it is written, Eye hath not seen, nor ear heard, neither have entered into the heart of man, the things which God hath prepared for them that love him.
He revealeth the deep and secret things: he knoweth what is in the darkness, and the light dwelleth with him.
They search out iniquities; they accomplish a diligent search: both the inward thought of every one of them, and the heart, is deep.
Hast thou entered into the springs of the sea? or hast thou walked in the search of the depth? Have the gates of death been opened unto thee? or hast thou seen the doors of the shadow of death?
Now when he had left speaking, he said unto Simon, Launch out into the deep, and let down your nets for a draught.
The woman saith unto him, Sir, thou hast nothing to draw with, and the well is deep: from whence then hast thou that living water?
Thus saith the Lord GOD; Thou shalt drink of thy sister's cup deep and large: thou shalt be laughed to scorn and had in derision; it containeth much.
(Now that he ascended, what is it but that he also descended first into the lower parts of the earth?