John 1:51

Hereafter, &c.--The key to this great saying is Jacob's vision (Gen 28:12-22), to which the allusion plainly is. To show the patriarch that though alone and friendless on earth his interests were busying all heaven, he was made to see "heaven opened and the angels of God ascending and descending upon a" mystic "ladder reaching from heaven to earth." "By and by," says Jesus here, "ye shall see this communication between heaven and earth thrown wide open, and the Son of man the real Ladder of this intercourse." Next: John Chapter 2

The scope and design of this chapter is to confirm our faith in Christ as the eternal Son of God, and the true Messiah and Saviour of the world, that we may be brought to receive him, and rely upon him, as our Prophet, Priest, and King, and to give up ourselves to be ruled, and taught, and saved by him. In order to this, we have here, I. An account given of him by the inspired penman himself, fairly laying down, in the beginning, what he designed his whole book should be the proof of (Joh 1:1-5); and again (Joh 1:10-14); and again, (Joh 1:16-18). II. The testimony of John Baptist concerning him (Joh 1:6-9, and Joh 1:15); but most fully and particularly (v. 19-37). III. His own manifestation of himself to Andrew and Peter (Joh 1:38-42), to Philip and Nathanael (Joh 1:43-51).

1:51 I tell you the truth (Greek amēn amēn): Jesus often used this expression to emphasize what he was about to say. In John’s Gospel, the Greek word amēn is always doubled. • you will all see heaven open: Jesus made the comparison with Jacob explicit (see study note on 1:47; see Gen 28:10-22). Like Jacob, Nathanael would see God at work. Jesus himself is the new Bethel (“house of God,” Gen 28:19), the place where God lives. • Son of Man: See study note on John 9:35; see also Dan 7:13-14; Mark 8:31. • John the apostle used several names for Jesus (Son of God, Son of Man, Messiah). Knowing Jesus’ true identity is necessary to fully understanding and following him.