A medium…who consults the dead…
is detestable to the Lord.
–Deuteronomy 18:11-12–

Just then there appeared before them
Moses and Elijah, talking with Jesus.
–Matthew 17:3–

I saw the dead, great and small,
standing before the throne.
–Revelation 20:12–

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I have myself many times found on a sudden so lively an apprehension of a deceased friend, that I have sometimes turned about to look…those that died in faith. In dreams, I have had exceeding lively conversations with them; and I doubt not but they were then very near.
–John Wesley–

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Andre Pradel, St. Vincent Ferrer: His Life… (R. Washbourne, 1875), pp. 32-33.