The omnipresent God in heaven, and on earth in the image and likeness of man.
We read in John 1:14 “And the Word became flesh and dwelt among us, and we have seen his glory, glory as of the only Son from the Father, full of grace and truth.” Because Jesus is the eternal God who became man He was able to redeem mankind from the first Adam to the last Adam and was able to take away the sins of the whole world. His Grace is all-encompassing.
As Gleason Archer explains, God had to become one of us to redeem us from the guilt and penalty of our sins. God as God could not forgive us for our sins unless our sins were fully paid for; otherwise, he would have been a condoner and protector of the violation of His own holy law. It was only as a man that God in Christ could provide a sacrifice sufficient to atone for the sins of humankind; for only a man born of flesh could represent the human race.
But our Redeemer had to be God, for only God could furnish a sacrifice of infinite value, to compensate for the penalty of the eternal hell that our sin demands according to the righteous claims of divine justice. Only God could have devised a way of salvation by which He could remain Just, while becoming the Justifier of the ungodly. So instead of sending the wicked to the everlasting perdition they deserved, it was the perfect Man, who was also the infinite God, that furnished an effective sacrifice for all believers of every age.
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