1 Samuel 28:19

With me, i.e. in the state of the dead; and so it was true both of Saul and Jonathan. Or, in the state of rest; for though thou shalt suffer here for thy sin, yet after death thou shalt be happy, as dying in the Lord's quarrel: so the devil's design might be to flatter Saul into an opinion of his own future happiness, and to take him off from all serious thoughts and cares about it. And it is here observable, that as it was the manner of the heathen oracles to answer ambiguously, the better to save his credit in case of mistake; (the devil himself not being certain of future events, but only conjecturing at what was most likely;) so doth this counterfeit Samuel here. For, as concerning the time, he says to-morrow; which he understood indifferently for the very next day, or for some short time after. And, as concerning the condition, thou shalt be with me; which may be understood either of a good condition, if understood as spoken in the person of Samuel; or of a bad condition, if understood as spoken by an evil spirit; or at least indefinitely of a dead condition, be it good or evil; which last he foresaw by circumstances to be very likely.