"Aligning faith in God and certainty about what we believe and needing to be right in order to maintain a healthy faith--these do not make for a healthy faith in God. In a nutshell, that is the problem. And that is what I mean by the "sin of certainty." It is sin because this pattern of thinking sells God short by keeping the Creator captive to what we are able to comprehend--which is the very same problem the Israelites had when they were tempted to make images of God (aka idols) out of stone, metal, or wood. For ancient people, images made the gods present for the worshippers, something tangible to look at to let them connect with the divine realm. But Israel's God said no. Any images shaped by human hands limit God by bringing God too far into alignment with ancient conceptions of the divine."