KJV:
Then was Nebuchadnezzar full of fury, and the form of his visage was changed against Shadrach, Meshach, and Abednego: therefore he spake, and commanded that they should heat the furnace one seven times more than it was wont to be heated.
NASB:
Then Nebuchadnezzar was filled with wrath, and his facial expression was altered toward Shadrach, Meshach and Abed-nego. He answered by giving orders to heat the furnace seven times more than it was usually heated.
KJV:
Therefore because the king's commandment was urgent, and the furnace exceeding hot, the flame of the fire slew those men that took up Shadrach, Meshach, and Abednego.
NASB:
For this reason, because the king's command was urgent and the furnace had been made extremely hot, the flame of the fire slew those men who carried up Shadrach, Meshach and Abed-nego.