Does not seem like praying to or for dead people is appropriate. Seems that to pray to dead is not at all right. Seems to pray for dead is not all right too. The dead know nothing and do nothing
Psalms 88:10 Wilt thou shew wonders to the dead? shall the dead arise and praise thee? Selah.
Psalms 115:17 The dead praise not the LORD, neither any that go down into silence.
Ecclesiastes 9:5 For the living know that they shall die: but the dead know not any thing, neither have they any more a reward; for the memory of them is forgotten.
Many years ago, I heard or read about where people go when they die and maybe it was a joke but if ever there was a God, I thought it sounded right. i.e. "Kill them all and let God sort them out" Still sounds right to me. This is what I think of as a peripheral issue that has nothing to do with salvation but yet can have negative effects if not treated properly.
Isaiah 14:1-11
Easy-to-Read Version
Israel Will Return Home
14 The Lord will again show his love to Jacob. He will again choose the people of Israel. He will give them their land. Then the non-Israelites[a] will join the Israelites, and both will become one family—Jacob’s family. 2 Those nations will bring the Israelites back to their land. The men and women from the other nations will become slaves to Israel. In the past, those people forced the Israelites to become their slaves. But in the future the Israelites will defeat those nations, and Israel will then rule over them in the Lord’s land. 3 In the past, you were slaves. People forced you to work hard. But the Lord will take away the hard work you were forced to do.
A Song About the King of Babylon
4 At that time you will begin to sing this song about the king of Babylon:
The king was cruel when he ruled us,
but now his rule is finished.
5 The Lord breaks the scepter of evil rulers;
he takes away their power.
6 In anger, the king of Babylon beat the people.
He never stopped beating them.
He was an evil ruler who ruled in anger.
He never stopped hurting people.
7 But now, the whole country rests and is quiet.
Now the people begin to celebrate.
8 You were an evil king,
and now you are finished.
Even the pine trees are happy.
The cedar trees of Lebanon rejoice.
They say, “The king chopped us down,
but now the king has fallen,
and he will never stand again.”
9 The place of death is excited
that you are coming.
Sheol is waking the spirits
of all the leaders of the earth for you.
Sheol is making the kings stand up
from their thrones to meet you.
10 They will make fun of you, saying,
“Now you are as dead as we are.
Now you are just like us.”
11 Your pride has been sent down to Sheol.
The music from your harps announces the coming of your proud spirit.
Maggots will be the bed you lie on,
and other worms will cover your body like a blanket.