Not purloining (stealing), but shewing all good fidelity; that they may adorn the doctrine of God our Saviour in all things. For the grace of God that bringeth salvation hath appeared to all men, Teaching us that, denying ungodliness and worldly lusts, we should live soberly, righteously, and godly, in this present world [the correct word is age];
The doctrine of God Our Savior is the Kingdom of God–denying the desires of the soul, taking up our cross, going thru sanctification (becoming more holy), putting on armor and etc.
But now look at Hebrews 6 :1. Therefore leaving the principles of the doctrine of Christ, let us go on unto perfection; not laying again the foundation of repentance from dead works, and faith toward God.
We cannot head toward maturity (perfection) if all we talk about is saving the soul, blessings from God and seven points of how to be a better Christian. This is only the gospel and not the gospel of the Kingdom and subjects the pastor and his congregation to Matthew 13–consequences to understand the Kingdom of Heaven. There are two Kingdoms: Kingdom of the Father of Jesus and the kingdom of wickedness (satan). The soul is not the spirit. It is saved so that we can see the spiritual Kingdom of God. Seek you first the kingdom of God–the gospel of the Kingdom (not the gospel). The king wants us in His Kingdom. But read closely Hebrews 6:1 because it states that we are to mature even beyond the doctrine of Christ.
The gospel (Savior) and the gospel of the Kingdom (King) are not the same.
Pilate did not ask Him if He was the Savior. He asked Him if He was a King.