Delilah told this to the Philistines and they came, ready to capture Samson. After he had went to sleep, Delilah cut off Samson's hair and told him that the Philistines were attacking.
I'll fight them off!
The Philistines captured Samson for his power had left him. They gouged out his eyes and brought him to their temple to entertain them. Samson was brought to the pillars that supported the temple to lean on them while all the Philistine rulers watched.
"Then Samson prayed to the LORD, “Sovereign LORD, remember me. Please, God, strengthen me just once more, and let me with one blow get revenge on the Philistines for my two eyes.” "(judges 16:28) Samson push with all his might and brought down the pillars, destroying the temple, killing himself and everyone inside the temple.