18 Because he was very thirsty, he cried out to the LORD, “You have given your servant this great victory. Must I now die of thirst and fall into the hands of the uncircumcised?”

Read Judges 15:18 Using Other Translations

And he was sore athirst, and called on the LORD, and said, Thou hast given this great deliverance into the hand of thy servant: and now shall I die for thirst, and fall into the hand of the uncircumcised?
And he was very thirsty, and he called upon the LORD and said, "You have granted this great salvation by the hand of your servant, and shall I now die of thirst and fall into the hands of the uncircumcised?"
Samson was now very thirsty, and he cried out to the LORD, “You have accomplished this great victory by the strength of your servant. Must I now die of thirst and fall into the hands of these pagans?”