en_tn/1sa/16/23.md

harmful spirit

Here "harmful spirit" may refer to either a "spirit that causes trouble" or an "evil spirit." See how you translated this in 1 Samuel 16:14.

was upon Saul

"troubled Saul"

Saul would be refreshed and well

This can be stated in active form. AT: "the music would refresh Saul and make him well" (See: rc://en/ta/man/translate/figs-activepassive)