Who is Faith Weaver from Red Prophet and what is their importance?

Do you mean Faith Miller? Faith Miller is a God fearing Christian woman who still understands that knacks are a gift from God and not to be squandered. She also believes highly in the power of prayer, and above all that life is sacred. She tries to give these gifts to her sons, one and all, and takes a harsh stand against them when they stray from the path of righteousness.