KJV: For this cause, when I could no longer forbear, I sent to know your faith, lest by some means the tempter have tempted you, and our labour be in vain.
NASB: For this reason, when I could endure it no longer, I also sent to find out about your faith, for fear that the tempter might have tempted you, and our labor would be in vain.
KJV: The Lord grant unto him that he may find mercy of the Lord in that day: and in how many things he ministered unto me at Ephesus, thou knowest very well.
NASB: the Lord grant to him to find mercy from the Lord on that day-- and you know very well what services he rendered at Ephesus.
KJV: Nevertheless the foundation of God standeth sure, having this seal, The Lord knoweth them that are his. And, Let every one that nameth the name of Christ depart from iniquity.
NASB: Nevertheless, the firm foundation of God stands, having this seal, "The Lord knows those who are His," and, "Everyone who names the name of the Lord is to abstain from wickedness."
KJV: And they shall not teach every man his neighbour, and every man his brother, saying, Know the Lord: for all shall know me, from the least to the greatest.
NASB: "AND THEY SHALL NOT TEACH EVERYONE HIS FELLOW CITIZEN, AND EVERYONE HIS BROTHER, SAYING, 'KNOW THE LORD,' FOR ALL WILL KNOW ME, FROM THE LEAST TO THE GREATEST OF THEM.