*Minor differences ignored. Grouped by changes, with first version listed as example.
The "evil" or "melancholy" spirit here spoken of was "the Spirit of God," or "of Jehovah," as being God's messenger and minister, sent by Him to execute His righteous purpose upon Saul (see 1-Kings 22:19-22 note).
And Saul's servants said unto him,.... His courtiers, who observing him to act in a frantic manner, to be dull and melancholy, timorous, and irresolute, unsteady, divided, and distressed; or his physicians, who were called in to assist him, and remove his disorder from him:
behold, now an evil spirit from God troubleth thee: the disorder was not from any natural cause, or any bodily disease, and therefore out of the reach of physicians to do any service, but was from an evil spirit suffered of God to harass and disturb him.
*More commentary available at chapter level.