Indeed they do! Here's a bit of history for you! Given the fact that you have still not responded to my post on another thread ..
Fundamentalists and Catholics Whose Bible is it, anyway?
which seriously questions your purported ability to 'interpret' scripture.
Moving right along, however, you not only posted seriously questionable links on that thread regarding highly questionable relics, you have moved on to posting a thread devoted solely to this topic. Once again, you demonstrate your poor understanding of history and the early church fathers.
Keep in mind what the Church says about relics. It doesnt say there is some magical power in them. There is nothing in the relic itself, whether a bone of the apostle Peter or water from Lourdes, that has any curative ability. The Church just says that relics may be the occasion of Gods miracles, and in this the Church follows Scripture.
The use of the bones of Elisha brought a dead man to life: "So Elisha died, and they buried him. Now bands of Moabites used to invade the land in the spring of the year. And as a man was being buried, lo, a marauding band was seen and the man was cast into the grave of Elisha; and as soon as the man touched the bones of Elisha, he revived, and stood on his feet" (2 Kgs. 13:20-21). This is an unequivocal biblical example of a miracle being performed by God through contact with the relics of a saint!
Similar are the cases of the woman cured of a hemorrhage by touching the hem of Christs cloak (Matt. 9:20-22) and the sick who were healed when Peters shadow passed over them (Acts 5:14-16). "And God did extraordinary miracles by the hands of Paul, so that handkerchiefs or aprons were carried away from his body to the sick, and diseases left them and the evil spirits came out of them" (Acts 19:11-12).
If these arent examples of the use of relics, what are? In the case of Elisha, a Lazarus-like return from the dead was brought about through the prophets bones. In the New Testament cases, physical things (the cloak, the shadow, handkerchiefs and aprons) were used to effect cures. There is a perfect congruity between present-day Catholic practice and ancient practice. If you reject all Catholic relics today as frauds, you should also reject these biblical accounts as frauds.