At HiFi, my friend OneWay comments on the fact that Doubt is so hot right now. He cites the current catchphrase, "the opposite of faith is not doubt, but certainty" - and then demonstrates why this line of reasoning falls flat on its face:
"Now faith is the assurance of things hoped for, the conviction of things not seen." (Hebrews 11:1)
As a matter of fact, if you replace all the occurrences in the Bible of the word "faith" with the word "certainty", I find congruence. The word "doubt"? No way.
Apparently cultural popularity isn't such a great litmus test for biblical theology. Related to the question of what place mystery has in orthodox Christian spirituality, I'm adding these paragraphs from an earlier post dealing with "Mystery vs. Certainty."
God-glorifying joy flows from true knowledge of God—not a hazy, general idea of Godness. God has gone to great lengths to reveal himself to us through the Bible. Therefore, the only God-honoring joy that flows from “mystery” stems from a projection of what we do know about God (which may be small or flawed, and thus problematic). This is not to say that the mysterious depths of God are not a catalyst for praise. But we are moved to awe by God's infinite, unfathomable goodness only because we've seen a degree of that goodness revealed—and therefore know that we're looking at a glorious, beautiful God and not an insidious, endlessly wicked monster!
However, postmodern discomfort with certainty can lead us astray when it is directed towards what God has clearly revealed. Therefore, propositions about God must be defended—because joy flows from truth understood. There's a stream of postmodern/emerging thought which is overly eager to apply the “mystery” label or write off divisive doctrinal issues as too “puzzling” or “unclear” to talk about (i.e. Brian McLaren’s hazy position on homosexuality). Stances like this do God a disservice because, quite simply, they do created reality and revelation a disservice. Chronic uncertainty is stylish, but it's not reality-based, and needs to be slapped back.