Why is it inappropriate to worship Mary or saints in Christianity?

The sermon asserts that the worship of Mary and deceased saints lacks a biblical foundation, as scripture teaches that God should be worshiped alone. Jesus, in the passage discussed, makes it clear that while Mary had an honorable role as His mother, she was also a sinner saved by grace. Any inclination towards idolatrous worship distracts from the central role of Christ as the sole intercessor. 1 Timothy 2:5 clarifies that 'there is one God, and one mediator between God and men, the man Christ Jesus,' affirming that all believers should place their faith and prayers in Christ alone, rather than in His earthly mother or any saints.