Greetings again Samie,
This seems to be directly opposite to my understanding. If we are brought up in a Godly environment, or later come in contact with the Bible and its message, we gradually learn aspects of Christ and start to believe in him. When our faith has grown we reach the stage where we understand the gospel in its simplicity and beauty and we affectionately believe and espouse this and we are motivated to be baptised into Christ. This stage of growth could be considered to be accepting “the Faith of Christ”.
But this term can also represent the fullness, the purity, the perfect moral character, the beauty of character, the wisdom hidden and revealed, the complete trust that the Son of God had in God, His Father. This is “the Faith of Christ” that endured the suffering of the crucifixion and death, and resulted in victory over sin in Himself and on behalf of all others. When we believe and are baptised we identify with this saving faith revealed in Jesus, and only then are we “in Christ”.
Yes, we do seem to preach a different gospel.
Kind regards
Trevor