That she may be a snare to him - Saul had already determined the condition on which he would give his daughter to David; viz., that he should slay one hundred Philistines: this he supposed he would undertake for the love of Michal, and that he must necessarily perish in the attempt; and thus Michal would become a snare to him.

commanded

Psalm 36:1-3 The transgression of the wicked said within my heart, that there is no fear of God before his eyes...

Psalm 55:21 The words of his mouth were smoother than butter, but war was in his heart: his words were softer than oil, yet were they drawn swords.

servants

2 Samuel 13:28,29 Now Absalom had commanded his servants, saying, Mark you now when Amnon's heart is merry with wine, and when I say to you, Smite Amnon...

Proverbs 29:12 If a ruler listen to lies, all his servants are wicked.

The Exile.
David's first years at the court of Saul in Gibeah do not appear to have produced any psalms which still survive. "The sweetest songs are those Which tell of saddest thought." It was natural, then, that a period full of novelty and of prosperous activity, very unlike the quiet days at Bethlehem, should rather accumulate materials for future use than be fruitful in actual production. The old life shut to behind him for ever, like some enchanted door in a hill-side, and an unexplored land lay beckoning …
Alexander Maclaren—The Life of David