yogosans14: "Nevertheless, there is a Greek word for "first created," and it was in use at the time of Paul's writing to the Colossians."
The Greek word for "first-created" was not in popular use until after the first century, and when it did become popular, people used both "firstborn" and "first-created" interchangeably to refer to the same thing. Besides, existing biblical words such a"birth" were often connected to the idea of creation. Thus, the term first-created was not required biblically to express the concept that Jesus was created.
yogosans14: "That is obvious since Jesus is God in flesh ( John 1:1,14 ) and is also the first born son of Mary."
This statement reflects personal interpretation, not an actual biblical statement. The Word was the one who became flesh. Not God!
yogosans14: "Second, the biblical use of the word "firstborn" is most interesting. It can mean the first born child in a family ( Luke 2:7 ), but it can also mean "pre-eminence." In Psalm 89:20 , 27 it says, "I have found David My servant; with My holy oil I have anointed him . . . I also shall make him My first-born." (NASB). As you can see, David, who was the last one born in his family, was called the firstborn by God. This is a title of preeminence."
If "firstborn" meant preeminence based of Psal 89.20, would this indicate David was only preeminent, and never born? If one takes a look at a Concordance for the original words for "firstborn," do we find the meaning of preeminence throughout? We don't! What is the customary meaning of firstborn in the Bible? Jesus was ‘the firstborn of the dead.’ If Jesus was being described as preeminent of the dead, would the description rule out the fact that Christ never died?
As to the meaning of "panta" in relation to Christ, Paul defined the word in 1 Cor. 15.27 in a way that God was cleary excluded from the description in the text. Why is that so hard to understand? Oh wait, Trinitarians don't like simple biblical statements. They yearn for the mysterious over simplicity. Who can compete with a "mystery"? Or a "philosophy"?