15 Then she said to him, "How can you say, "I love you,' when your heart is not with me? You have mocked me three times now and have not told me what makes your strength so great." 16 Finally, after she had nagged him with her words day after day, and pestered him, he was tired to death. 17 So he told her his whole secret, and said to her, "A razor has never come upon my head; for I have been a nazirite to God from my mother's womb. If my head were shaved, then my strength would leave me; I would become weak, and be like anyone else."
Matthew Henry's Commentary on Judges 16:15-17
Commentary on Judges 16:4-17
(Read Judges 16:4-17)
Samson had been more than once brought into mischief and danger by the love of women, yet he would not take warning, but is again taken in the same snare, and this third time is fatal. Licentiousness is one of the things that take away the heart. This is a deep pit into which many have fallen; but from which few have escaped, and those by a miracle of mercy, with the loss of reputation and usefulness, of almost all, except their souls. The anguish of the suffering is ten thousand times greater than all the pleasures of the sin.