Think about what you are saying here. “Got everything from his Mother”… Clearly he received half his human genetic code from
Paternal Godhead.
Jesus has existed from the beginning. Even you acknowledge that John was fully cleansed by Christ … shortly before Christ takes on human flesh in womb of Mary.
God can do whatever he likes in his own universe. He designed and makes all the rules. Can he not touch one and not be soiled by our sinful state ? Indeed he can. It happened all thru the gospels … with the miraculous healings.
Yes, for one 3 hr period he took on the sins of all mankind on cross. Actually longer if we count the hours of his torture before going to Calvary. But, this was only by his consent to the Godhead … to allow himself to bear our sins. But, at the conclusion of Calvary … he yielded his spirit back to the Father in victory. The sin debt has been paid … Christ stained by our sins, and even still bearing scars of the event after his Resurrection. John’s vision later yet … still depicts Christ bearing bloody stains of Calvary.
John’s vision of Christ in the Apocalypse is that of the 'Lamb standing, as though it had been slain … approaching the Father and receiving the scroll from Him. A Victorious Christ, to whom all the elders and angels are singing “Worthy is the Lamb who WAS slain, to receive power and wealth and wisdom and might and honor and glory and blessing!” Christ having “ransomed men for God from every tribe and tongue and people and nation, and hast made them a kingdom and priests to our God, and they shall reign on earth.”
When Christ entered Mary … he either purified her instantaneously, or already had accomplished this cleansing preparation in her at an earlier date. The Father desired a sinless environment for the Son … so the Church believes.