@ DJW & Phizzy - it's pretty clear that Paul did not think/believe/teach that Jesus was God, or God's equal:
“...and when all things are thus subject to him, [God Almighty] then the Son himself will also be made subordinate to God who made all things subject to him, [Jesus] and thus God will be all in all. (1 Corithians 15:28 - NEB)
How could God Almighty subject/subordinate himself to himself?