'Fiery red' in the Bible

And he having answered, said to them, It being evening, ye say, Calm weather: for the heaven is fiery red.

And in the morning, Today, wintry weather: for heaven, being sad, is fiery red. Hypocrites, truly ye know to decide the face of heaven, but the signs of the times ye cannot.

And another horse came forth fiery red: and it was given to him sitting upon him to take peace from the earth, and that they should slaughter one another: and a great sword was given to him.

And another sign was seen in heaven; and behold a great fiery red dragon, having seven heads and ten horns, and upon his heads seven diadems.