5 Bible Verses about Deep Things

But God hath revealed them to us by his Spirit: for the Spirit searcheth all things, even the deep things of God.

But as it is written, "Eye hath not seen, and ear hath not heard, nor have entered into the heart of man, what things God hath prepared for those that love Him."

And when He had done speaking, He said to Simon, Put 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: whence then hast thou the living water?

Now this expression "He ascended" what does it mean, but that He descended first into the lower parts of the earth?