1 Samuel 18:6-9

The women came out of all the cities All the neighbouring cities. And the women answered one another as they played They sang, as well as played on musical instruments. And they sang alternately, as they did Exodus 15:21. And the burden of the song seems to have been that which follows. And said, Saul hath slain his thousands, &c. To understand this it is necessary to observe, that the usual way of singing at that time was in parts. So that some of these women having taken up or begun the song with, Saul hath slain his thousands, another party answered them in their turn in the same strain, And David his ten thousands. And Saul was very wroth He began to be jealous they would advance David to the throne in a little time, having so highly magnified him above their king. And Saul eyed David Narrowly observed him, or looked upon him with an envious eye.