Wow where is this comming from. Sorry I didn't comment on this sooner but I see it now and I I have to. Just a little before that passage we see this passage.
Matthew 5:14-16
Ye 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.
So which is it. Should we let our good works glorify our father or should we hide them.