I don't think I would use Thomas as an example of being saved. He was a chosen follower of Jesus before Jesus had accomplished his work on the cross and thus the situation cannot be compared to later evangelism. And if you insist on using an original disciple this way a Calvinist might ask you how come Jesus hand picked all the disciples without putting out a general invitation for anyone who wanted to join and then waiting to see how many disciples he would get.
I don't think you and Mr Flowers are right about that, Dave. If there is one thing about the Christian faith that is non negotiable it is the person and work of Jesus Christ.
The resurrection of Jesus Christ marked the transition from Law to Promise as it pertained to salvation of the Jews. Eventually it would transition to the grace of God as gentiles were included. Gentiles did not have a promise of salvation except through the promise to Abraham in his covenant where he said "in thy seed shall all the families of the earth be blessed. It did not mean there was a different way that Jews and gentiles would be saved. Being renewed into the image of Jesus Christ by the Spirit is the definition of salvation. Jesus Christ is the image of God on the earth. He is not less the image of God in heaven because of this. He is a trinity, something no
man is or can be since Adam before the fall because sin is in the world and sin rules over men as a sovereign and men without the Spirit obey it (Rom 5). Jesus Christ is the son of David, the son of Abraham but he is the son of Man whose genealogy goes all the way back to the fallen Adam through Mary, his mother. He is not of the bloodline of Adam and his offspring else he could not be our savior. His Father is Jehovah God. He is the God Man and though tempted with the temptation that is common to us all he never sinned.
Jesus Christ said in John 3 that he came down to earth from the Father. He is the everlasting God and he came down as a Spirit to indwell the body that God had prepared for him in the womb of Mary and as the preacher, Solomon said, the spirit of man, the soul, comes from God. This is the image of God he intended for man and it is the image that is renewed in man through Jesus Christ who dealt with the penalty of sin by enduring the penalty of the sinner, death, separating of the soul and body, the first death, and by enduring the second death, which is the separation of body and soul from God and his wrath. He did this by a one time event of shedding his eternal blood, God's blood, on that cross, the second death being from 12 to 3 PM when the world went totally dark.
God had now reconciled the world to himself through Christ but this was not a worldwide salvation of every man but a sacrifice for every man in the world that they could claim as their own because God said he was propitiated on behalf of the whole world through Christ but each man must come to him in the name of Jesus Christ with this sacrifice. When they did, he promised he would give them eternal life and we read in the Bible that his life is the Spirit. He is the gift of God and he is Life.
Salvation is a personal transaction between each sinner and God and whosoever will, let him come and take of the water of life (the Spirit) freely.
Do not confuse this marvelous truth with false teaching.