And Samson called unto the LORD, and said, O Lord GOD, remember me, I pray thee, and strengthen me, I pray thee, only this once, O God, that I may be at once {n} avenged of the Philistines for my two eyes.

(n) According to my calling which is to execute God's judgments on the wicked.

Wesley's Notes

16:28 Samson called - This prayer was not an act of malice and revenge, but of faith and zeal for God, who was there publickly dishonoured; and justice, in vindicating the whole common - wealth of Israel, which was his duty, as he was judge. And God, who heareth not sinners, and would never use his omnipotence to gratify any man's malice, did manifest by the effect, that he accepted and owned his prayer as the dictate of his own Spirit. And that in this prayer he mentions only his personal injury, and not their indignities to God and his people, must be ascribed to that prudent care which he had, upon former occasions, of deriving the rage of the Philistines upon himself alone, and diverting it from the people. For which end I conceive this prayer was made with an audible voice, though he knew they would entertain it only with scorn and laughter.

Jamieson-Fausset-Brown Bible Commentary

28. Samson called unto the Lord-His penitent and prayerful spirit seems clearly to indicate that this meditated act was not that of a vindictive suicide, and that he regarded himself as putting forth his strength in his capacity of a public magistrate. He must be considered, in fact, as dying for his country's cause. His death was not designed or sought, except as it might be the inevitable consequence of his great effort. His prayer must have been a silent ejaculation, and, from its being revealed to the historian, approved and accepted of God.

Matthew Henry's Concise Commentary

16:25-31 Nothing fills up the sins of any person or people faster than mocking and misusing the servants of God, even thought it is by their own folly that they are brought low. God put it into Samson's heart, as a public person, thus to avenge on them God's quarrel, Israel's, and his own. That strength which he had lost by sin, he recovers by prayer. That it was not from passion or personal revenge, but from holy zeal for the glory of God and Israel, appears from God's accepting and answering the prayer. The house was pulled down, not by the natural strength of Samson, but by the almighty power of God. In his case it was right he should avenge the cause of God and Israel. Nor is he to be accused of self-murder. He sought not his own death, but Israel's deliverance, and the destruction of their enemies. Thus Samson died in bonds, and among the Philistines, as an awful rebuke for his sins; but he died repentant. The effects of his death typified those of the death of Christ, who, of his own will, laid down his life among transgressors, and thus overturned the foundation of Satan's kingdom, and provided for the deliverance of his people. Great as was the sin of Samson, and justly as he deserved the judgments he brought upon himself, he found mercy of the Lord at last; and every penitent shall obtain mercy, who flees for refuge to that Saviour whose blood cleanses from all sin. But here is nothing to encourage any to indulge sin, from a hope they shall at last repent and be saved.