Denshi Jisho — Online Japanese dictionary

Found 4 sentences.

Teach your grandmother how to suck eggs.
説法 Don't teach fishes to swim.
それ説法というもの That's like carrying coals to Newcastle.
説法とは存じます医者禁煙されたほうよろしいではないでしょう I'm sure you don't need me to tell you this, but wouldn't it be a good idea to stop smoking?