KJV:
This second epistle, beloved, I now write unto you; in both which I stir up your pure minds by way of remembrance:
NASB:
This is now, beloved, the second letter I am writing to you in which I am stirring up your sincere mind by way of reminder,
KJV:
And we know that the Son of God is come, and hath given us an understanding, that we may know him that is true, and we are in him that is true, even in his Son Jesus Christ. This is the true God, and eternal life.
NASB:
And we know that the Son of God has come, and has given us understanding so that we may know Him who is true; and we are in Him who is true, in His Son Jesus Christ. This is the true God and eternal life.