'Descending' in the Bible

John gave [further] evidence [testifying officially for the record, with validity and relevance], saying, “I have seen the Spirit descending as a dove out of heaven, and He remained upon Him.

Then He said to him, “I assure you and most solemnly say to you, you will see heaven opened and the angels of God ascending and descending on the Son of Man [the bridge between heaven and earth].”