God the Father did not become flesh but His Son Jesus Christ did. The Word was with God and the Word was God, and the Word became flesh and lived with man. Joh 1:1 & 14. This is a different picture to what you are saying but be that as it may, this was part of the Salvation Plan of God to let Jesus come to this earth to let the people know that God does exist and to show His powers ie. healing, raising the dead, prophecies etc., that Satan is on this earth and the master of sin, to show the people the right way to follow to receive eternity life with God so that man do not have to believe in stories or fables but can now believe in Jesus, to become saved. Jesus also had to die on the cross for us to rid us of all sins, but that is only for the ones that believe in Him. To those who ignore the teachings of Jesus Christ, there will be no hope for them. Jesus Christ also showed man how to love God and your neighbor by keeping God's Ten Commandments, which are still valid today and must still be held. That includes the Sabbath commandment, the keeping holy of Saturday, which is so easily forgotten due to the currently economical hustle and bustle and the ministers who preach this non-truth from the pulpits will certainly not be overlooked at judgement day. Today being a double sabbath where Jesus's death is being remembered throughout this world over this easter weekend. May you have a blessed sabbath today.