KJV: Every man's work shall be made manifest: for the day shall declare it, because it shall be revealed by fire; and the fire shall try every man's work of what sort it is.
NASB: each man's work will become evident; for the day will show it because it is to be revealed with fire, and the fire itself will test the quality of each man's work.
KJV: And thus are the secrets of his heart made manifest; and so falling down on his face he will worship God, and report that God is in you of a truth.
NASB: the secrets of his heart are disclosed; and so he will fall on his face and worship God, declaring that God is certainly among you.
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.