So let's debate/discuss this important topic, I might write an article about it for the main site shortly. Verses to start off the discussion, showing this is a most ancient Biblical Judeo-Christian belief. The Saints of the true God are not false gods; they are not gods, but God's Friends. They intercede for us, just like even other believers here on Earth do. If you disagree, pls explain why with verses of your own. God Bless.
1.
2 Macc 15:12 "And this was his vision: That Onias, who had been high priest, a virtuous and a good man, reverend in conversation, gentle in condition, well spoken also, and exercised from a child in all points of virtue, holding up his hands prayed for the whole body of the Jews. 13This done, in like manner there appeared a man with gray hairs, and exceeding glorious, who was of a wonderful and excellent majesty.
14Then Onias answered, saying, This is a lover of the brethren, who prayeth much for the people, and for the holy city, to wit, Jeremias the prophet of God. 15Whereupon Jeremias holding forth his right hand gave to Judas a sword of gold, and in giving it spake thus, 16Take this holy sword, a gift from God, with the which thou shalt wound the adversaries." https://www.kingjamesbibleonline.org/2-Maccabees-Chapter-15/Here we see Old Testament Saints like Onias and Jeremiah - who had died long before the historical time of the Maccabees - to be in fact alive in Heaven per the Bible and praying for God's People.
2.
Rev 5:8 "And when he had taken the book, the four beasts and four and twenty elders fell down before the Lamb, having every one of them harps, and golden vials full of odours, which are the prayers of saints."Here we see the Saints in Heaven are alive, not dead, and that they are offering prayers to God. We recall from the Gospel that Jesus Christ likewise told the Sadducees - correcting their erroneous beliefs on the subject - that God, the God of Abraham, is the God of the Living, i.e. that Abraham and Moses, and other Saints are Living in Heaven. God Bless.