Ecc 9:5, "For the living know that they will die, but the dead know nothing, and they have no more reward, for the memory of them is forgotten.
1 Corinthians 15:51-53, "Behold, I show you a secret truth: we will not all sleep, but we will all be changed-- In a moment, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, and the dead will be raised incorruptible, and we will be changed. For this corruptible must put on incorruption, and this mortal must put on immortality."
[SUP]1 Corinthians 15:20, " [/SUP]But now Christ is risen from the dead, and has become the firstfruits of those who have fallen asleep."
The Pharisees prayed to dead Rabbis also btw
Isayah 65:3-5, "A people who provoke Me to anger continually to My face; who sacrifice in gardens, and burn incense on altars of brick; Who assemble and spend the night keeping memorials for the dead, who eat swine's flesh, and the broth of abominable things is in their vessels, Who say; Stand by yourself! Do not come near me, for I am holier than you! These are a smoke in My nostrils, a fire that burns all the day."