KJV: But we, brethren, being taken from you for a short time in presence, not in heart, endeavoured the more abundantly to see your face with great desire.
NASB: But we, brethren, having been taken away from you for a short while-- in person, not in spirit-- were all the more eager with great desire to see your face.
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;