Let's see if we can get through to you with more Jesus isn't the immortal God since he died and was resurrected by God.
Romans 1
21For although they knew God, they neither glorified Him as God nor gave thanks to Him, but they became futile in their thinking and darkened in their foolish hearts.
22Although they claimed to be wise, they became fools,
23and exchanged the glory of the immortal God for images of mortal man and birds and animals and reptiles.
Where you lose the argument is that you don't have any scripture of Jesus being "In the Godhead" nor does your definition of "Godhead" match what the Bible says.
This is why you will always be begging the question in any argument you decide to produce about a trinity god. You simply lack any Biblical evidence that one exists in the first place.
If you want to start at square one against and try to find some scripture that describes God as a trinity then you are free to try again. I believe most of us have already read the Bible so I don't expect you to actually find anything.