"It was through faith that Noah, on receiving God’s warning of impending disaster, reverently constructed an ark to save his household. This action of faith condemned the unbelief of the rest of the world, and won for Noah the righteousness before God which follows such a faith." (Hebrews 11:7)
Have you ever stopped to realize that, when Noah received the command to build the ark, he was just one man; one man tasked with building a boat approximately the size of a US Navy Destroyer; and that that task would appear, based upon the account of Genesis 6, to have consumed 50, 60 or even 70 years of his life? I think we often read the command, his obedient build-out and the flood as one quick story, when the reality is that that building alone might've consumed something like 25,000 days...
So what does faith look like? It looks like rising to the 10,000th of those days of (what appears to everyone else like) an inane, unconscionable project: building the world's biggest vessel of salvation in the midst of everyone else's complete unconcern. Imagine just one day of standing in the desert, pounding away at the hull of a 450-foot-long boat, when no one around you has ever even seen rain before!
Faith will always cast off reputation with its eyes on the salvation-work of Jesus alone. Unbelief says, "I am the center of the world," and, frankly, "To hell with everyone else." Noah teaches us everything we need to know about reputation, obedience and belief. It's one day at a time. It's today alone.