'Spirit Descending' in the Bible

So, John gave his testimony, saying, "I have seen the Holy Spirit descending as a dove out of heaven, and it remained on Him.

And I did not recognize Him, but He [i.e., God], who sent me to immerse in water, said to me, 'The one on whom you see the Holy Spirit descending and remaining is the same One who [will] immerse people in the Holy Spirit.'