Russia's invasion of Ukraine this week provides an occasion of "Bible prophecy" advocates to speculate that certain End Times prophecies are being fulfilled. They want to say that Putin's actions prove that Jesus is about to return. Faithful Christians must pay careful attention to what Jesus has said about such things. Jesus taught his disciples to always watch and wait for his return, because he will come without warning, "like a thief in the night."
Jesus teaches that the full understanding of the commandment, "You shall not murder," is that God condemns even our being angry with someone. Therefore, Jesus teaches his disciples to devote themselves to helping one another resolve their anger and make peace as soon as possible.
Jesus announces the great theme of his Sermon on the Mount: his teachings make it possible for God's people to understand and practice the Law in the full way that God intended.
Jesus introduced the famous images of "salt of the earth" and "city on a hill" in this early part of his Sermon on the Mount. He uses these images to teach his followers what he has called them to be for this world that is destined for destruction. If Jesus were to teach this lesson again today, rather than salt and lamplight, he might use the image of scented candles.