In John 1:44-51, Jesus forsees that heaven open, and the angels of God ascending and descending on the Son of Man. Like a big movie script, God outside time and space can see what we know as future.
John 1:44-51
[44](Philip was from Bethsaida, the town where Andrew and Peter lived.)
[45]Philip found Nathanael and told him, “We have found the one whom Moses wrote about in the book of the Law and whom the prophets also wrote about. He is Jesus son of Joseph, from Nazareth.”
[46]“Can anything good come from Nazareth?” Nathanael asked.“Come and see,” answered Philip.
[47]When Jesus saw Nathanael coming to him, he said about him, “Here is a real Israelite; there is nothing false in him!”
[48]Nathanael asked him, “How do you know me?”Jesus answered, “I saw you when you were under the fig tree before Philip called you.”
[49]“Teacher,” answered Nathanael, “you are the Son of God! You are the King of Israel!”
[50]Jesus said, “Do you believe just because I told you I saw you when you were under the fig tree? You will see much greater things than this!”
[51]And he said to them, “I am telling you the truth: you will see heaven open and God’s angels going up and coming down on the Son of Man.”