KJV: And David said to Solomon his son, Be strong and of good courage, and do it: fear not, nor be dismayed: for the LORD God, even my God, will be with thee; he will not fail thee, nor forsake thee, until thou hast finished all the work for the service of the house of the LORD.
NASB: Then David said to his son Solomon, "Be strong and courageous, and act; do not fear nor be dismayed, for the LORD God, my God, is with you. He will not fail you nor forsake you until all the work for the service of the house of the LORD is finished.
KJV: And I sent messengers unto them, saying, I am doing a great work, so that I cannot come down: why should the work cease, whilst I leave it, and come down to you?
NASB: So I sent messengers to them, saying, "I am doing a great work and I cannot come down. Why should the work stop while I leave it and come down to you?"
KJV: For they all made us afraid, saying, Their hands shall be weakened from the work, that it be not done. Now therefore, O God, strengthen my hands.
NASB: For all of them were trying to frighten us, thinking, "They will become discouraged with the work and it will not be done." But now, O God, strengthen my hands.