In Luke 21: 7-19, Jesus warns us about false prophets and wars in the world. In this passage, Jesus teaches us two things. One is that no one knows the time of His second coming and we need to be ready for when he comes. The 2nd is that believers will experience persecution and many difficulties in this world, but Jesus is our defender and protector. When we believe in him, we are saved but we need to keep our faith in him until we die or he returns.