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."

 1:6-8 There emerged a man sent from God whose name was John. He came as a witness, in order to bear witness to the light, that through him all might believe. He himself was not the light; his function was to bear witness to the light. 