The Bible speaks of a blood-red moon prior to Jesus Christ's return. Joel 2:31 (KJV) The sun shall be turned into darkness, and the moon into blood, before the great and terrible day of the LORD come. Acts 2:20 (KJV) The sun shall be turned into darkness, and the moon into blood, before that great and notable day of the Lord come. The Jewish Talmud says, "When the moon is in eclipse, it is a bad omen for Israel. If its face is as red as blood, ( a sign) the sword is coming to the world."