John 1:29, 51

The next day he saw Jesus coming to him and said, “Look! The Lamb of God who takes away the sin of the world! [Ex 12:3; Is 53:7]

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].” [Gen 28:12; Dan 7:13]