KJV:
And every spirit that confesseth not that Jesus Christ is come in the flesh is not of God: and this is that spirit of antichrist, whereof ye have heard that it should come; and even now already is it in the world.
NASB:
and every spirit that does not confess Jesus is not from God; this is the spirit of the antichrist, of which you have heard that it is coming, and now it is already in the world.
KJV:
Ye are of God, little children, and have overcome them: because greater is he that is in you, than he that is in the world.
NASB:
You are from God, little children, and have overcome them; because greater is He who is in you than he who is in the world.
KJV:
They are of the world: therefore speak they of the world, and the world heareth them.
NASB:
They are from the world; therefore they speak as from the world, and the world listens to them.
KJV:
In this was manifested the love of God toward us, because that God sent his only begotten Son into the world, that we might live through him.
NASB:
By this the love of God was manifested in us, that God has sent His only begotten Son into the world so that we might live through Him.
KJV:
And we have seen and do testify that the Father sent the Son to be the Saviour of the world.
NASB:
We have seen and testify that the Father has sent the Son to be the Savior of the world.