Are wood, hay, and stubble easy to find compared to gold and silver?
Yes. Wood, hay, and stubble are everywhere and readily available, while gold, silver, and precious stones are not found lying outside the door or by walking down the street. They must be mined from rough country through hard work, so most believers build with the easy materials because they are unwilling to labor for the rare ones.
Les explains that the first question is whether gold, silver, or precious stones are found just outside the door or by walking down the street. They are not; they require going into rough country and hard work, as he learned from an old gold miner in the Rocky Mountains who worked hard for every ounce. By contrast, wood, hay, and stubble are everywhere. Les says most Christians build with these easy materials because they are too lazy to go out and work for the hard-to-get materials. Christ must be the foundation, and every man's work will be made manifest for reward.