Matthew 16:1 in the World English Bible
The Pharisees and Sadducees came, and testing him, asked him to show them a sign from heaven.
Context
1 The Pharisees also with the Sadducees came, and tempting desired him that he would shew them a sign from heaven.
2 He answered and said unto them, When it is evening, ye say, It will be fair weather: for the sky is red.