Jews say the Mourner's Kaddish, a beautiful prayer that glorifies God, for up to a year after the death of a parent, close relative, or for certain others. It is thought that a person is under divine judgment for twelve months and these prayers assist the ascension of their souls.
Glorified and sanctified be God's great name throughout the world
which He has created according to His will.
May He establish His kingdom in your lifetime and during your days,
and within the life of the entire House of Israel, speedily and soon;
and say, Amen.
May His great name be blessed forever and to all eternity.
Blessed and praised, glorified and exalted, extolled and honored,
adored and lauded be the name of the Holy One, blessed be He,
beyond all the blessings and hymns, praises and consolations that
are ever spoken in the world; and say, Amen.
May there be abundant peace from heaven, and life, for us
and for all Israel; and say, Amen.
He who creates peace in His celestial heights,
may He create peace for us and for all Israel;
and say, Amen.
Compare with Catholic tradition and the scripture The effectual fervent prayer of a righteous man availeth much.
I didn't know what it was called. Thanks.
If God got the Jews to pray for the dead, then why would we not consider it an important thing?