In the beginning, God Triune created Heaven and Earth. Genesis 1:1. They were created by the Triune God. Not by the vicarious Romish Pope, nor by the unitarian Islam's Allah.
Then God Triune said: 'Let Us make man in Our image!' Genesis 1:26. After man fell, God Triune said: 'Man has become like One of Us!' Genesis 3:22. Then God Triune said: 'Let Us go down!' Genesis 11:4-7.
So God Triune sent down His Son as the God-man Jesus Christ, and gave Him all power in Heaven and Earth. In His Great Commission, Jesus commanded His Ministers: 'You must go and disciple all nations, baptizing them in the name of the Father and the Son and the Holy Spirit, teaching them to observe all things whatsoever I have commanded you. And look, I [in the Spirit] am with you always – even to the end of the World!" Matthew 28:18-20.