I think you meant “article.”
Intercession is Biblical.
Who was the first person who asked Jesus to do something extraordinary?
Hint: Wedding of Cana
She told those around her: “Do whatever He tells you.”
Mary was the first intercessor; she interceded for bride and groom who were out of wine.
BTW, those are the last words of Mary in the Bible. So we should also listen.
“Do whatever he tells you.” She points away from herself directly to her Son, Jesus Christ, true man and true God.
Mary was alive in your example.
The dead don’t intercede.