Moreover the LORD will also deliver Israel with you into the hand of the Philistines: and tomorrow shall you and your sons be with me: the LORD also shall deliver the army of Israel into the hand of the Philistines.
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Augustine of Hippo
AD 430
Also, some can be sent to the living from the dead, just as in the opposite direction divine Scripture testifies that Paul was snatched from the living into paradise. Samuel the prophet, although dead, predicted future events to King Saul, who was alive, although some think that it was not Samuel himself who was able to be called forth by some magic, but that some spirit so allied with evil works had feigned a likeness to him—yet the book of Ecclesiasticus, which Jesus the son of Sirach is said to have written, but because of some similarity of style is thought to be the work of Solomon, contains in praise of the fathers the fact that Samuel prophesied even though dead. If there is objection to this book on the ground that it is not in the canon of ancient Hebrew Scripture, what are we going to say of Moses, who in Deuteronomy is certainly recorded as dead and again in the Gospel of Matthew is reported to have appeared to the living along with Elijah who did not die. - "The Care to Be ...
To-morrow. Usher supposes some days afterwards. But all might take place the day after this was spoken. (Calmet)
Sons, except Isboseth, who enjoyed, for a time, part of his father's kingdom. (Haydock)
With me. That is, in the state of the dead, and in another world, though not in the same place. (Challoner)