Deuteronomy 18:10 There shall not be found among you anyone who burns his son or his daughter as an offering,5 anyone who practices divination or tells fortunes or interprets omens, or a sorcerer
11 or a charmer or a medium or a necromancer or one who inquires of the dead,
12 for whoever does these things is an abomination to the LORD. And because of these abominations the LORD your God is driving them out before you.
13 You shall be blameless before the LORD your God,

the death here can be our ancestors, st Joseph, st Luke, Mary, st John etc, the point is any body who have died, please should we consult them or pray to them or enquire of them? i need help please,