As Moses lifted up the serpent in the wilderness, even so must the Son of Man be lifted up,
even so must the son of man be lifted up; upon the cross, and die: the crucifixion and death of Christ were necessary, and must be, because of the decrees and purposes of God, by which he was foreordained thereunto, and by which determinate counsel he was delivered, taken, crucified, and slain; and because of his own engagements as a surety, laying himself under obligations in the council and covenant of peace, to suffer, and die, in the room of his people; and because of the prophecies in the Old Testament, and his own predictions, that so it should be; as also, that the antitype might answer the type; and particularly, that he might be a suitable object of faith for wounded sinners, sensible of sin, to look unto.