16:21 His eyes - Which was done both out of revenge and policy, to disable him from doing them harm, in case he should recover his strength; but not without God's providence, punishing him in that part which had been instrumental to his sinful lusts. Gaza - Because this was a great and strong city, where he would be kept safely; and upon the sea - coast, at sufficient distance from Samson's people; and to repair the honour of that place, upon which he had fastened so great a scorn. God also ordering things thus, that where he first sinned, Judg 16:1, there he should receive his punishment. Grind - As slaves use to do. He made himself a slave to harlots, and now God suffers men to use him like a slave. Poor Samson, how art thou fallen! How is thine honour laid in the dust! Wo unto him, for he hath sinned! Let all take warning by him, carefully to preserve their purity. For all our glory is gone, when the covenant of our separation to God, as spiritual Nazarites, is profaned.
16:18-21 See the fatal effects of false security. Satan ruins men by flattering them into a good opinion of their own safety, and so bringing them to mind nothing, and fear nothing; and then he robs them of their strength and honour, and leads them captive at his will. When we sleep our spiritual enemies do not. Samson's eyes were the inlets of his sin, (ver. 1,) and now his punishment began there. Now the Philistines blinded him, he had time to remember how his own lust had before blinded him. The best way to preserve the eyes, is, to turn them away from beholding vanity. Take warning by his fall, carefully to watch against all fleshly lusts; for all our glory is gone, and our defence departed from us, when our separation to God, as spiritual Nazarites, is profaned.