The KJV of Ephesians 3:9 states:
And to make all men see what is the fellowship of the mystery, which from the beginning of the world hath been hid in God, who created all things by Jesus Christ:
People like to read into that and say the Jesus Christ created the world.
However, that is not what it says.
Who does it say created?
a. Jesus Christ
b. "God, who created all things"
Who does it say that God created all things by?
It says Jesus Christ, however, and this is very important, the words "by Jesus Christ" do not appear in the texts.
Those words to not appear in the texts. Somehow they did end up in the KJV and some others but not all versions include those words because those versions honestly handled the textual evidence.
For instance:
ASV and to make all men see what is the dispensation of the mystery which for ages hath been hid in God who created all things;
AMP and to make plain [to everyone] the plan of the mystery [regarding the uniting of believing Jews and Gentiles into one body] which [until now] was kept hidden through the ages in [the mind of] God who created all things.
CSB and to shed light for all about the administration of the mystery hidden for ages in God who created all things.
CEB God sent me to reveal the secret plan that had been hidden since the beginning of time by God, who created everything.
CJB and of letting everyone see how this secret plan is going to work out. This plan, kept hidden for ages by God, the Creator of everything,
CEV God, who created everything, wanted me to help everyone understand the mysterious plan that had always been hidden in his mind.
DARBY and to enlighten all [with the knowledge of] what is the administration of the mystery hidden throughout the ages in God, who has created all things,
DLNT and enlighten everyone to see what is the stewardship of the mystery having been hidden from the past ages in God, the One having created all things,
DRA And to enlighten all men, that they may see what is the dispensation of the mystery which hath been hidden from eternity in God, who created all things:
ERV And God gave me the work of telling all people about the plan for his secret truth. That secret truth has been hidden in him since the beginning of time. He is the one who created everything.
EHV and to enlighten everyone about the administration of this mystery. In past ages this mystery remained hidden in God, who created all things.
ESV and to bring to light for everyone what is the plan of the mystery hidden for ages in God, who created all things,
ESVUK and to bring to light for everyone what is the plan of the mystery hidden for ages in God who created all things,
EXB And God gave me the work of ·telling [making plain; enlightening] all people about the ·plan for [administration of; C the same word translated “work” in v. 2] his ·secret [mystery], which has been hidden ·in [or by] him ·since the beginning of time [L from the ages]. He is the One who created everything.
That is a partial list from Bible Gateway.
Overwhelmingly, the versions do not include those words.
Why not? because they do not belong there because there is no textual evidence for them.
Why would have some included them? Because they read Colossians 1:15-19, especially verses 16-17.
Rather than get into another long discussion about how to rightly divide Colossians, for now I submit that it is sufficient to note that Ephesians 3:9 when correctly stated according to the texts, states that God created, not Jesus Christ.
I believe that Jesus is the Son of God, that God is the Creator.