KJV:
Take, my brethren, the prophets, who have spoken in the name of the Lord, for an example of suffering affliction, and of patience.
NASB:
As an example, brethren, of suffering and patience, take the prophets who spoke in the name of the Lord.
KJV:
But above all things, my brethren, swear not, neither by heaven, neither by the earth, neither by any other oath: but let your yea be yea; and your nay, nay; lest ye fall into condemnation.
NASB:
But above all, my brethren, do not swear, either by heaven or by earth or with any other oath; but your yes is to be yes, and your no, no, so that you may not fall under judgment.
KJV:
Brethren, if any of you do err from the truth, and one convert him;
NASB:
My brethren, if any among you strays from the truth and one turns him back,
KJV:
By Silvanus, a faithful brother unto you, as I suppose, I have written briefly, exhorting, and testifying that this is the true grace of God wherein ye stand.
NASB:
Through Silvanus, our faithful brother (for so I regard him), I have written to you briefly, exhorting and testifying that this is the true grace of God. Stand firm in it!
KJV:
Wherefore the rather, brethren, give diligence to make your calling and election sure: for if ye do these things, ye shall never fall:
NASB:
Therefore, brethren, be all the more diligent to make certain about His calling and choosing you; for as long as you practice these things, you will never stumble;
KJV:
And account that the longsuffering of our Lord is salvation; even as our beloved brother Paul also according to the wisdom given unto him hath written unto you;
NASB:
and regard the patience of our Lord as salvation; just as also our beloved brother Paul, according to the wisdom given him, wrote to you,
KJV:
He that saith he is in the light, and hateth his brother, is in darkness even until now.
NASB:
The one who says he is in the Light and yet hates his brother is in the darkness until now.
KJV:
He that loveth his brother abideth in the light, and there is none occasion of stumbling in him.
NASB:
The one who loves his brother abides in the Light and there is no cause for stumbling in him.
KJV:
But he that hateth his brother is in darkness, and walketh in darkness, and knoweth not whither he goeth, because that darkness hath blinded his eyes.
NASB:
But the one who hates his brother is in the darkness and walks in the darkness, and does not know where he is going because the darkness has blinded his eyes.
KJV:
In this the children of God are manifest, and the children of the devil: whosoever doeth not righteousness is not of God, neither he that loveth not his brother.
NASB:
By this the children of God and the children of the devil are obvious: anyone who does not practice righteousness is not of God, nor the one who does not love his brother.