Who invented the phrase silence is golden?

The original proverb quotes that Speech is silver, but silence is golden. There is no certain origin. It is known that similar quotes were known to the ancient Egyptians. It appears in English in the 14th Century as 'silence is good' and again in the early 18th Century in English from a phrase translated from German. As silence has long been accepted in religious circles, a Bible of 1382 quotes that 'silence is made in Heaven'