By His death on the cross, [by the Begotten Son's obedience to the Father's will, saying, Father, not my will, but thine be done] He had taken back the victory, power, dominion and authority that was taken from the Created Son Adam in the garden of Eden.  He had regained the Kingship. What remained was for the rightful heir to come and inherit the Kingship.

It was not a coincidence, but part of the perfect plan of the Almighty Father, that has the Begotten Son lay dying on the cross, He saw His seed. This was prophesied in Isaiah 53:10 " Ye it pleased the Lord to bruise him; he hath put him to grief: when thou shalt make his soul an offering for sin, He shall see his seed, he shall prolong his days, and the pleasure of the Lord shall prosper in his hand."