Luke 6:12–13 says Jesus prayed all night on a mountain before choosing His Twelve Apostles. Right after that, Luke records a shorter sermon given “in the plain,” in Luke 6:17. It’s a lot like the one Matthew records on a mountain, which we call the Sermon on the Mount, in Matthew 5–7. It opens with the Beatitudes in Matthew 5:3–12. Blessed are the poor in spirit, the mourners, the meek, the merciful, the peacemakers and the persecuted. None of those look “blessed” on a social feed. Jesus is redefining the word. Real blessedness comes from who we’re becoming, not from how comfortable life looks.
Then He calls His disciples salt and light, in 5:13–16. Salt gives flavor and preserves. Salt that loses its savor is useless. A light isn’t meant to hide under a bushel, which is a basket. And the light’s purpose is striking. It’s so people “glorify your Father,” not the one shining. Then comes a pattern in 5:21–44: “Ye have heard… But I say unto you.” The old law said don’t kill. Jesus goes to the anger underneath, and the JST removes “without a cause” from verse 22. The old law said don’t commit adultery. Jesus goes to the eyes and heart, in 5:27–28. That ties right to what youth watch and scroll. He asks for simple honesty, where yes means yes, in 5:37. Under Roman rule, soldiers could force people to carry things, as in Matthew 27:32. Jesus says if you’re forced to go a mile, go two, in 5:41. And He asks us to love our enemies and pray for those who mistreat us, in 5:44.
Matthew 5:48 can crush a perfectionist teen: “Be ye therefore perfect.” The footnote explains that the Greek word means complete, finished, fully developed. The manual recommends Jeffrey R. Holland’s talk “Be Ye Therefore Perfect—Eventually.” The higher law isn’t a scoreboard. It’s a direction, and the Savior’s grace carries us along it. With fourteen- to sixteen-year-olds, keep it honest. The higher law is harder than the old one, and that’s exactly why it changes people. The For the Strength of Youth section “Your Body Is Sacred” teaches that our bodies are sacred. It invites clean thoughts as well as clean behavior. Matthew 5:27–28 is the Savior’s own teaching behind that.