KJV:
As also in all his epistles, speaking in them of these things; in which are some things hard to be understood, which they that are unlearned and unstable wrest, as they do also the other scriptures, unto their own destruction.
NASB:
as also in all his letters, speaking in them of these things, in which are some things hard to understand, which the untaught and unstable distort, as they do also the rest of the Scriptures, to their own destruction.
KJV:
And these things write we unto you, that your joy may be full.
NASB:
These things we write, so that our joy may be made complete.
KJV:
This then is the message which we have heard of him, and declare unto you, that God is light, and in him is no darkness at all.
NASB:
This is the message we have heard from Him and announce to you, that God is Light, and in Him there is no darkness at all.
KJV:
My little children, these things write I unto you, that ye sin not. And if any man sin, we have an advocate with the Father, Jesus Christ the righteous:
NASB:
My little children, I am writing these things to you so that you may not sin. And if anyone sins, we have an Advocate with the Father, Jesus Christ the righteous;
KJV:
And hereby we do know that we know him, if we keep his commandments.
NASB:
By this we know that we have come to know Him, if we keep His commandments.
KJV:
But whoso keepeth his word, in him verily is the love of God perfected: hereby know we that we are in him.
NASB:
but whoever keeps His word, in him the love of God has truly been perfected. By this we know that we are in Him:
KJV:
Who is a liar but he that denieth that Jesus is the Christ? He is antichrist, that denieth the Father and the Son.
NASB:
Who is the liar but the one who denies that Jesus is the Christ? This is the antichrist, the one who denies the Father and the Son.
KJV:
And this is the promise that he hath promised us, even eternal life.
NASB:
This is the promise which He Himself made to us: eternal life.
KJV:
These things have I written unto you concerning them that seduce you.
NASB:
These things I have written to you concerning those who are trying to deceive you.
KJV:
Behold, what manner of love the Father hath bestowed upon us, that we should be called the sons of God: therefore the world knoweth us not, because it knew him not.
NASB:
See how great a love the Father has bestowed on us, that we would be called children of God; and such we are. For this reason the world does not know us, because it did not know Him.