“You give everything you do your best effort.” The third building block of faith may be the most important, since the first two depend on it. Would you say, “You are fine just the way you are,” and “I trust you with that which is mine,” if you knew that you were not going to get “best effort?” Not on your life, especially since your life is partially what is at risk.
Simon’s point is simple. Faith is built from acceptance and trust but rests on believing that each of you is getting the best the other has to offer, every day, in every way. Sensitive Simon will not sing his theme song for you here; but please feel free to hum a verse or two should you have the urge.