for, Note the Figure of speech Parenthesis. App-6.
king's weight: to distinguish it from the sacred shekel. See App-51.
Related Commentaries of 2 Samuel 14:26
2 Samuel 14:26
26 And when he polled his head, (for it was at every year's end that he polled it: because the hair was heavy on him, therefore he polled it:) he weighed the hair of his head at two hundred shekels after the king's weight.