Verses 24, 25. - David's answer exactly fell in with Saul's purposes, and he forthwith asked as a dowry proof of David having slain a hundred Philistines. As this slaughter would have to be effected not in regular warfare, but in a sort of private raid, there would be every likelihood of David being overpowered by a rapid gathering of the Philistines and slain in attempting it. It marks the unscrupulous character of ancient warfare that the lives of enemies should thus be taken, without any public provocation, for private purposes (comp. Judges 14:19).
18:12-30 For a long time David was kept in continual apprehension of falling by the hand of Saul, yet he persevered in meek and respectful behaviour towards his persecutor. How uncommon is such prudence and discretion, especially under insults and provocations! Let us inquire if we imitate this part of the exemplary character before us. Are we behaving wisely in all our ways? Is there no sinful omission, no rashness of spirit, nothing wrong in our conduct? Opposition and perverseness in others, will not excuse wrong tempers in us, but should increase our care, and attention to the duties of our station. Consider Him that endured contradiction of sinners against himself, lest ye be weary and faint in your minds, Heb 12:3. If David magnified the honour of being son-in-law to king Saul, how should we magnify the honour of being sons to the King of kings!
And the servants of Saul told him, saying, on this manner spake David. Such and such words were spoken by him, to this purpose; the sum and substance of them were expressive of his unworthiness to be a king's son-in-law, and of his inability to bring a dowry suitable to her quality.