He said to him, "Most assuredly, I tell you, hereafter you will see heaven opened, and the angels of God ascending and descending on the Son of Man."
Angels of God - Those pure and holy beings that dwell in heaven, and that are employed as ministering spirits to our world, Hebrews 1:14. Good men are represented in the Scriptures as being under their protection, Psalms 91:11-12; Genesis 28:12. They are the agents by which God often expressed his will to men, Hebrews 2:2; Galatians 3:19. They are represented as strengthening the Lord Jesus, and ministering unto him. Thus they aided him in the wilderness Mark 1:13, and in the garden Luke 22:43, and they were present when he rose from the dead, Matthew 28:2-4; John 20:12-13. By their ascending and descending upon him it is probable that he meant that Nathanael would have evidence that they came to his aid, and that he would have “the” kind of protection and assistance from God which would show “more fully that he was the Messiah.” Thus his life, his many deliverances from dangers, his wisdom to confute his skilled and cunning adversaries, the scenes of his death, and the attendance of angels at his resurrection, may all be represented by the angels descending upon him, and all would show to Nathanael and the other disciples most clearly that he was the Son of God.