>>686879
But what is this light? A rationalizing teaching? No, it isn't. See the parallel passage by Matthew which explains it:
You are the light of the world. A city that is set on an hill cannot be hid. Neither do men light a candle, and put it under a bushel, but on a candlestick; and it giveth light unto all that are in the house. Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven. (Matthew 5:14-16)
Therefore, the light shines mainly from the saints. Let, o, Lord, this light shine from us too before men, so that they may see the good works that Your grace does through us, and glorify our Father which is in heaven.
As for the sacred things, we have this command by our Lord:
Give not that which is holy unto the dogs, neither cast you your pearls before swine, lest they trample them under their feet, and turn again and rend you. (Matthew 7:6)