Gospel and the Eternal Sin

The Gospel is:
"He that believeth and is baptized shall be saved."
(Mark 16:16 KJV)
The Eternal Sin is:
To not believe the Gospel
The Gospel is Immortal
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THE PROTOTOKOS CHURCH Mission Statement:
To unify the church (Ephesians 4:4-6 KJV)
WE in the Body of Christ believe:
The "one body" is the Body of Christ
The "one Spirit" is the Holy Spirit.
The "One Lord" is Jesus Christ, the son of God.
The "one faith" is faith in the Gospel.
The "one baptism" is baptism by immersion in water.
The "One God" is the one true God.
WE in the Body of Christ are in agreement on how to unify the church.