2 John 1 9
All those who become extremists and don't continue to follow the teaching of Christ don't have God with them. Those who continue to follow the teaching of Christ have both the Father and the Son with them.
Compare with other 3 random translations
NIV 2 John 1:9Anyone who runs ahead and does not continue in the teaching of Christ does not have God; whoever continues in the teaching has both the Father and the Son.
GW 2 John 1:9Everyone who doesn’t continue to teach what Christ taught doesn’t have God. The person who continues to teach what Christ taught has both the Father and the Son.
YLT 2 John 1:9every one who is transgressing, and is not remaining in the teaching of the Christ, hath not God; he who is remaining in the teaching of the Christ, this one hath both the Father and the Son;