Religion may be a quest for the truth, but it has no way of finding the truth, or verifying what it claims to find. Our knowledge of what God is like has not advanced one iota over the ideas of the 1500s.
And insofar as theological interpretation has changed, it's done so not as a result of faith's quest for truth, but of pressure from science and secular morality. Really, can any theologian, philosopher, or scientist tell me anything about God now that we didn't know 500 years ago? Then ask a scientist what we know now about science that we didn't know in 1500.