2 John 1:8-9

Look to yourselves, that we lose not those things which we have wrought, but that we receive a full reward. {wrought: or, gained, some copies read, ye have gained, but that ye, etc.} Whosoever transgresseth, and abideth not in the doctrine of Christ, hath not God. He that abideth in the doctrine of Christ, he hath both the Father and the Son.