Likely because of your misunderstanding of "the faith of Christ", you have completely misunderstood the entire chapter. You have ignored the clear, plain, direct statement of verse 1. It's clearly stated again in verse 39: "And these all, having obtained a good report through faith, received not the promise." Those verses frame all the stories, and all the stories are of people who acted on their belief that God is true to His word. By doing so, they demonstrated faith, which is certainty in things not seen.
Those people did not receive a good report because of their testimony, but because of their faith. Faith is not testimony! Testimony is only one's declaration of personal experience, which may not have anything to do with faith.