If Jesus is God, why did He ascend to His God? John 20:17

Jesus ascended because He first descended into the Realm of Time to provide blood atonement for your sin thereby paving the Path to eternal life for the one who believes in Him as Messiah-Lord-Redeemer who died for them to pay their sin-debt (John 3:16); otherwise, you would be lost in hopelessness and the path to death in Hell would be without detour (Matthew 26:28; John 14:6; John 8:24; Acts 4:12). Jesus’ entrance into Time as Spirit in human flesh (John 4:24; Philippians 2:5-11) is now eternal through His resurrection and those who believe in Him as Lord will also receive a resurrected body fashioned after His resurrected body and this body will be used in service to Jesus Christ our Lord and King and God in the New Jerusalem, forever (1 Corinthians 15:20; Philippians 3:21).

Jesus is God, eternally…Jesus is the same yesterday, today, forever (Hebrews 13:8) and His entrance into Time “to destroy the works of the Devil” (1 John 3:8b) through the Crucifixion did not nullify His deity but verified it for the one who believes and receives the Holy Spirit as their Wisdom and Discernment (Ephesians 1:13-14; 1 John 2:27). Jesus ascended to the Father because Jesus and the Father have been ONE throughout eternity (John 17:5; John 10:30; John 14:8-10) and our resurrected Lord will the One you serve in the New Jerusalem IF you repent of your sin and sincerely believe in your heart that Jesus Christ is Lord who died for you (Romans 10:9-10).