When Jesus died on the cross, why did he say Father into your hands I commend my spirit if He is the Father?

(Luke 23:46, Isaiah 9:6, John 14:9)

This scripture shows the dual nature of Jesus. All spirits go back to God, so this shouldn't be a strange statement. God had a body that was fully man and this body could die, even though, the Spirit was alive. Jesus died because it was the will of the Deity or Spirit of God (The Father). God allowed his own body to be crucified, shed blood and die for our sins (Acts 20:28). The fleshly part of God (Sonship) died, not the Spirit (Deity)(Zechariah 12:10). Therefore, when Jesus says, I commend my spirit into your hands, He is saying, the spirit of this flesh, as a man (Jesus-Son) will return to the Spirit (Father – Spirit in heaven) from which it came.

This excerpt is from my book, "Understanding the Trinity, Three Persons vs Three Manifestations by Will Daniels. Google: will daniels understanding the trinity