Even as pianos need constant tuning and regulating--not only when young and raw, but all through their careers of being used for brilliant concerts--so people who are being used as "instruments of righteousness"--or, in other words, living creative, fruitful lives--need constant refreshing, "tuning."

It came into my mind that receiving God's strength in our weakness as we call out to Him for help is very similar to a piano receiving new brilliance when the hammers are made harder with the proper juice or made softer and more mellow with some pricks of the needle-like instrument. Our "Master Technician," God, knows just what we need so that we are at times more "brilliant" for something we need to do, or more "mellow" or "soft" for the other compositions we need to have come through us!