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.
17. if I be shaven, then my strength will go from me—His herculean powers did not arise from his hair, but from his peculiar relation to God as a Nazarite. His unshorn locks were a sign of his Nazaritism, and a pledge on the part of God that his supernatural strength would be continued.