Albert Barnes Commentary 1 Samuel 18:6

"And it came to pass as they came, when David returned from the slaughter of the Philistine, that the women came out of all the cities of Israel, singing and dancing, to meet king Saul, with timbrels, with joy, and with instruments of music." — 1 Samuel 18:6 (ASV)

The Philistine - Rather as in the margin. The allusion is not to Goliath, but to one of the expeditions referred to in 1 Samuel 18:5.

Singing and dancing - Women used to dance to the sound of the timbrel, and to sing as they danced and played.

Instruments of music - The word means an instrument like the triangle, or one with three cords.