No where in scripture does it tell us that God was created by anyone or anything, nor does it say that Jesus was created by God. Instead, the Bible points to God’s eternality (Psalm 90:2, Exodus 3:14, John 17:5). It is hard for us to grasp the concept of eternality. We often think that there has to be an end. This is because our minds are finite, or limited. God is infinite (without limits).
John 1:1-3 sums it up well when introducing Jesus. It says, “In the beginning was the Word, and the Word was with God, and the Word was God. He was in the beginning with God. All things were made through him, and without him was not any thing made that was made.” The beginning is not in reference to the beginning of God, but the beginning of the world. It goes on to say that all things where made through him that exist.
Just because we cannot fathom the concept of eternity does not mean we throw it out. Knowledge of God is a gift, not a given.