I really enjoyed talks in City Bible Forum, and over the past 3 weeks, John Dickson has been giving talks from his book "A Spectator's Guide to Jesus". I've always managed to learn something from those talks, and yesterday from the talk about the divinity of Jesus (i.e. is Jesus God?), John used the parallel of Philippians 2:9-11 and Isaiah 45:23-25 to help us to see the theology of divinity of Jesus has long been established prior to Synod of Laodicea.
Now, Philippians 2:5-11 is probably an early Christian hymn, written by early Christians who profess Christian faith, and was quoted by Paul in his letter to the Philippians.
9 Therefore God has highly exalted him and bestowed on him the name that is above every name, 10 so that at the name of Jesus every knee should bow, in heaven and on earth and under the earth, 11 and every tongue confess that Jesus Christ is Lord, to the glory of God the Father.
Whose name is this that is above every name, so that every knee should bow and every tongue confess? Now these Christian hymnists must have known the Old Testament, and must have written this song with Isaiah 45:23-25 in mind.
23 By myself I have sworn; from my mouth has gone out in righteousness a word that shall not return: 'To me every knee shall bow, every tongue shall swear allegiance.' 24 "Only in the Lord, it shall be said of me, are righteousness and strength; to him shall come and be ashamed all who were incensed against him. 25 In the Lord all the offspring of Israel shall be justified and shall glory."
That sort of matches. Isaiah 45 is what they have in mind when they wrote a song about Jesus. So who is that first-person in Isaiah 45, who every knee should bow and every tongue swear allegiance? It is the Lord, the YHWH, the God Almighty.
Therefore, the idea "Jesus is God" must have been something in the head of a hymnist in the first century. It is not something made up 200-300 years later to rebuke those claiming Jesus is less-than-God. Christians recognised it right from the beginning.