Three Kinds of Workmen

In 1 Cor. 3, verses 14, 15, and 17, there are three kinds of workmen. We all fit in here in one way or another. "If any man's work abide which he hath built thereupon, he shall receive a reward." Here is the workman who works and his work abides in that day. It is gold. silver and precious stones, those things that are according to God's mind, according to His precious Word. Not only does his work abide, but on top of that he gets a reward. Isn't that an encouragement to us to try to work according to the way that God has laid down in His Word?