Judges 16:19

19. She called for a man “Probably a barber. The business of eastern barbers lies in shaving the head rather than the beard, and they do it so skilfully and gently that, so far from a sleeping man being awaked, a waking man is lulled to sleep under the operation. Considering the great mass of hair of which Samson had to be deprived, he would probably have been roused by inexperienced hands, which may be the reason why Delilah herself did not operate upon the recumbent Nazarite, as painters falsely represent that she did.” Kitto.

She began to afflict him In what particular way is told in the next verse.