Read 1 Samuel 16
There is what appears to be a conflict between chapters 16 1nd 17, and a lot of different commentary.
Here in this chapter David has been anointed to be the next king and is called to Saul's service. In the next chapter it appears that Saul doesn't know who David is. There are a lot of places in the scriptures where stories are told out of chronological order. I think this is another example.
In any case the subject here is that the Holy Spirit has left Saul and an evil spirit came upon him. There are a lot of people that think Saul was simply deeply depressed or bi-polar. Maybe, that's the explanation which dismisses spiritual forces. The text says that it was sent by God, again maybe, but I have difficulty believing that God actually sends evil. I accept that He won't stop us from doing evil. I also remember Jesus teaching how evil spirits will fill a vacant space. I am inclined to believe the latter. That after the Holy Spirit left there was a void and it was filled by something evil. And although we're not told what songs David sang, what if they were songs of praise and worship? That would certainly calm an evil spirit.
Today's workout. Grapevines, pull up, burpees, row, jump rope, T. 6 moves 36 intervals