have you not read in the Book of Moses,
in the passage about the bush, how God told him,
I am the God of Abraham, the God of Isaac,
and the God of Jacob?
He is not God of the dead but of the living.
You are greatly misled."
-- Mk 12:18-27
The Pharisees and many of the Lord's contemporaries hoped for the resurrection. Jesus teaches it firmly. To the Sadducees who deny it he answers, "Is not this why you are wrong, that you know neither the scriptures nor the power of God?" Faith in the resurrection rests on faith in God who "is not God of the dead, but of the living."
-- CCC 993
(Celebrating the Year of Saint Paul: Roman road near the forum in Rome. Saint Paul trudged the roads like this of the Roman empire in his apostolic mission to spread the Gospel of Jesus Christ to the Gentile world.)