faith's "beneficial taskmaster": uncertainty

Last U2 album, one of the buzzwords was knees/kneeling.

This time, "uncertainty" pops up at least twice:

"But while I´m getting over certainty/Stop helping God across the road like a little old lady." ("Stand Up Comedy")

" Two souls too smart to be in the realm of certainty"
("Moment of Surrender")

Of course, prayer/faith and uncertainty are connected.

-We walk by faith,
and not by sight;
so certainly this is not certainty. 2 Cor 5.17

-Abraham left home, completely clueless about where he was going;
knowing why he was going was enough. Heb 11.8

Actually, Andy Prickett prefers "How" to "Why?":

...What IS celebrated perhaps by the underworld is your insistence on getting so stuck on arguing with Why?, you never ask yourself the other, oft forgotten, but hugely important question: How? And while answering Why? is usually considered the gateway to the secret of life, I’d like to vote for How?. Because how you respond to life’s immense cause and effect scenarios is where you actually find meaning. Why? is a question that leads to ends that are beyond our understanding (why is God love?) How? has answers that have either come before you, or are created by your attempt to actually ‘do’ something. And your responses to How? can actually have a positive impact on future events....
-Andy Prickett, "Why Ask Why?"

“It is not the place but the Presence that upholds you! This is your only certainty.”
-Erwin McManus

"The opposite of faith is not doubt, but certainty"
-Anne Lammott

"I'm not certain about much. I woke up today feeling the ridiculousness of believing in an invisible partner to fashion myself after and follow. This whole idea of religions seems rather foolish. Why not live my own life my way? Prayer seems like one step removed from the delusion of talking to your self. The whole idea of church struck me as rather cult-ish. So why do it? Why put myself through all of the mental anguish that comes with faith? If I don’t want to come at this from a ‘yay! I’m down with Jesus’ perspective, what am I left with?'
-Maurice Broaddus

Kierkegaard often gets the last word around here:

Thus everything is assumed to be in order with regard to the Holy Scriptures--what then? has the person who did not believe come a single stop closer to faith? No, not a single step. Faith does not result from straightforward scholarly deliberation, nor does it come directly; on the contrary, in this objectivity one loses that infinite, personal, impassioned interestedness, which is the condition of faith, the ubique et nusquam [everywhere and nowhere] in which faith can come into existence.
Has the person who did believe gained anything with regard to the power and strength of faith? No, not in the least; in this prolix knowledge, in this certainty that lurks at faith's door and craves for it, he is rather in such a precarious position that much effort, much fear and trembling will indeed be needed lest he fall into temptation and confuse knowledge with faith. Where as up to now faith has had a beneficial taskmaster in uncertainty, it would have its worst enemy in this certainty. This is, if passion is taken away, faith no longer exists, and certainty and passion do not hitch up as a team.

-Soren Kierkegaard,
Concluding Unscientific Postscript to Philosophical Fragments
lifted from Tommy's blog