So this is an attack on all prayer to Saints or the departed? And the Virgin Mary is a Golden Idol? Just Oy.
Exodus 20 and many other references throughout the OT tell us all worship, prayer and thanksgiving belong to God and God is the only One worthy of such. When Jesus taught us to pray it was to The Father through Him. Please find an OT prayer or Psalm directed towards Moses or any other human being. You won’t find one. When Joshua prayed he went directly to God and did not invoke the name of Moses nor seek the departed Moses as an intercessor.
The only example we have of an OT figure calling on a departed “saint” is when King Saul called upon Samuel through a witch.
I asked this question a few times in the past with no answer. Please point me to the NT apostolic teachings of Mary and or the “saints” addressed in an intercessory role.