KJV:
Whosoever believeth that Jesus is the Christ is born of God: and every one that loveth him that begat loveth him also that is begotten of him.
NASB:
Whoever believes that Jesus is the Christ is born of God, and whoever loves the Father loves the child born of Him.
KJV:
For whatsoever is born of God overcometh the world: and this is the victory that overcometh the world, even our faith.
NASB:
For whatever is born of God overcomes the world; and this is the victory that has overcome the world-- our faith.
KJV:
All unrighteousness is sin: and there is a sin not unto death.
NASB:
All unrighteousness is sin, and there is a sin not leading to death.
KJV:
We know that whosoever is born of God sinneth not; but he that is begotten of God keepeth himself, and that wicked one toucheth him not.
NASB:
We know that no one who is born of God sins; but He who was born of God keeps him, and the evil one does not touch him.
KJV:
The elder unto the elect lady and her children, whom I love in the truth; and not I only, but also all they that have known the truth;
NASB:
The elder to the chosen lady and her children, whom I love in truth; and not only I, but also all who know the truth,
KJV:
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.
NASB:
Anyone who goes too far and does not abide in the teaching of Christ, does not have God; the one who abides in the teaching, he has both the Father and the Son.
KJV:
Beloved, I wish above all things that thou mayest prosper and be in health, even as thy soul prospereth.
NASB:
Beloved, I pray that in all respects you may prosper and be in good health, just as your soul prospers.
KJV:
Demetrius hath good report of all men, and of the truth itself: yea, and we also bear record; and ye know that our record is true.
NASB:
Demetrius has received a good testimony from everyone, and from the truth itself; and we add our testimony, and you know that our testimony is true.
KJV:
Beloved, when I gave all diligence to write unto you of the common salvation, it was needful for me to write unto you, and exhort you that ye should earnestly contend for the faith which was once delivered unto the saints.
NASB:
Beloved, while I was making every effort to write you about our common salvation, I felt the necessity to write to you appealing that you contend earnestly for the faith which was once for all handed down to the saints.