Solomon is like a sketch artist who takes a blank sheet of paper and draws in a few simple lines and lo and behold a complete picture stands before our eyes. Much of the picture remains missing and it is the eye of the viewer that fills in the details.
The proverb is about people’s ability to make dishonest excuses. They may be very good at this. They may latch on to some real reason but then exaggerate it for their purposes. It is about lack of integrity in dealing with our faults and failings. Unless we are prepared to admit our sins and face them head on, we cannot deal with them. Unless we are honest about our motives we will remain captive to our worst tendencies. The sluggard must admit his laziness and his inclination to make excuses, otherwise he will not deal with it. The correction of a fault needs to start in the heart of the one with the fault, for if he does not recognise it, he will stave off all attempts by others to deal with it. We must be our own physicians before we let other treat us. Of course we need the help of other and we need the work of God in our hearts, but we must lower the barriers to let that work be done.