“When the Bible clearly teaches us that ‘there is one mediator between God and man, the man Christ Jesus’ (1 Timothy 2:5), how can you Catholics even begin to justify praying to saints?”
To begin, we don’t pray to saints. We ask the saints to pray for us.
Huge difference, revealing, right from the start, a huge misconception that many, many have about Catholic teaching on this point.
Catholics ask the saints to pray for them and what’s the big deal with that, we ask? Do you ask your friends to pray for you? Do you ask your pastor to pray for you? And when you do, do you worry that you are somehow contradicting the scriptural teaching that Jesus is the “sole Mediator between God and man”? And if you don’t worry, why not?
Clearly, the reason you don’t worry is that while you believe Jesus Christ is, in a most profound sense, the “sole Mediator between God and man,” the way, the truth and the life, the one who has brought us to the Father, you also believe that those who have been made members of his mystical body share in his mediatorial work. While you believe that Jesus is our faithful high priest, you also believe that in him we Christians have become a kingdom of priests. And so as Christ’s voice we bring Christ’s message. As his hands and feet we serve in his name. This is also why we pray for others in the name of Jesus — because we share in his priestly ministry.
And this is why we ask the saints in heaven to intercede for us. While Protestants for some reason believe that those who are with Jesus in heaven have ceased to function as members of his body, we do not.
If you want to learn more about how to understand and explain this great doctrine of the Church, check out The Saints page on the Calling All Converts site, watch the short videos presented there, look at the other resources. Learn!
Here’s a good one to start with.