'Hair' in the Bible

Then she said, “Please let the king remember the Lord your God, so that the avenger of blood will not continue to destroy, otherwise they will destroy my son.” And he said, “As the Lord lives, not one hair of your son shall fall to the ground.”

When he cut the hair of his head (and it was at the end of every year that he cut it, for it was heavy on him so he cut it), he weighed the hair of his head at 200 shekels by the king’s weight.