Serpent in the Wilderness - Jewish Salvation

JOHN 3:12-15 (Jesus Taught) “’If earthly things I told you and you do not believe, how will you believe if I tell you the heavenly things? And no one has gone up into Heaven [under the pretense of self-reparation for offenses of sin of the “iniquitous gifts” of the son’s of Israel] except he [who neither borrowed from grace nor loaned from mercy- witnesses as the one- to be lead before the Ancient of Days] out of heaven coming down [a man of contention to all the land], the son of man, who is in heaven [an exalted place- revealing the prophetic witness to the final events in the history of the world].’”
Verse 14 “’And as (accordingly) Moses lifted up the serpent in the wilderness, so to must be lifted up the son of man that every one believing in him may not perish but have everlasting life [through the turning away from sin].’”