Thus saith the LORD [jesus], thy redeemer, and he that formed thee from the womb, I am the LORD [jesus] that maketh all things; that stretcheth forth the heavens alone; that spreadeth abroad the earth by myself.
It was the Lord Jesus. So what’s your point?
What part of "alone" and "by myself" do you find confusing?? How can there be more than one creator in light of the above?