@George Antonios,
Thanks for your video which I have now listened to. I need to listen again and take some notes, but here are some preliminary thoughts.
Firstly, you were never a Calvinist, and if you think there is such a thing as a 'four point Calvinist' you don't really understand Calvinism. That's like there being someone who's four parts pregnant! You may perhaps have been an Amyraldian, but without knowing which part you rejected, I can't be sure. I was pleased to note that you seem now to be a genuine Arminian, since you believe in the necessity of a prevenient work of grace.
Also, let me assure you that Calvinists do not believe that God 'forces' anyone to believe, nor does He prevent other people from doing so, though He does sometimes harden them in their unbelief. People do not believe because they have sinful unbelieving hearts (e.g. John 3:19). God opens the hearts of sinners to believe (Acts of the Apostles 16:14), taking away the stony heart of unbelief and giving them a soft malleable heart (c.f. Ezekiel 36:26-27); then they believe of their own free will (Psalms 110:3)
Secondly, Ephesians 2:8.
'For by grace you have been saved through faith, and this [Gk.
touto]
not of yourselves; it is the gift of God.' So what is the gift of God?
touto is neuter singular: 'this one thing.' The nearest antecedent is 'faith,' and therefore it is reasonable to suppose that it is faith that is the gift of God.
Moreover, repentance and faith are two sides of the same coin. An unrepentant faith is what Simon Magus had, and an unbelieving repentance is what Judas Iscariot had. The very first words of our Lord's public ministry were
'repent and believe the gospel' (Mark 1:15). So what's my point? Acts of the Apostles 11:18.
'When they heard these things they became silent; and they glorified God, saying, "Then God has also granted to the Gentiles repentance to life."'
You are, however, entirely correct about the 'faith of Christ.' More later, as I have time.