51. Hereafter, &c.—The key to this great saying is Jacob's vision (Ge 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."

     3. Except, &c.—This blunt and curt reply was plainly meant to shake the whole edifice of the man's religion, in order to lay a deeper and more enduring foundation. Nicodemus probably thought he had gone a long way, and expected, perhaps, to be complimented on his candor. Instead of this, he is virtually told that he has raised a question which he is not in a capacity to solve, and that before approaching it, his spiritual vision required to be rectified by an entire revolution on his inner man. Had the man been less sincere, this would certainly have repelled him; but with persons in his mixed state of mind—to which Jesus was no stranger (Joh 2:25) —such methods speed better than more honeyed words and gradual approaches.