Isaiah 58 opens with a complaint. The people were fasting and going through the motions, and they asked the Lord, in effect, “Why don’t You notice?” (58:2–3). His answer is blunt: on your fast days you still chase your own interests, push your workers harder, and argue and fight (58:3–4). Bowing your head like a drooping reed and sitting in sackcloth and ashes is not the point (58:5). The fast He chooses loosens the bands of wickedness, lifts heavy burdens, frees the oppressed, feeds the hungry, shelters the poor, clothes the naked, and doesn’t hide from your own family (58:6–7).
Then come some of the best promises in the Old Testament: your light will break out like the morning, your healing will come quickly, you’ll call and the Lord will answer, “Here I am,” He’ll guide you continually, and you’ll be like a watered garden whose water never runs dry (58:8–11). Verses 13–14 add the Sabbath: when we turn it from “my own pleasure” into a day focused on the Lord and call it a delight, He promises joy. The rest of the block looks forward: “Arise, shine; for thy light is come” (60:1), “beauty for ashes” (61:3), and new heavens and a new earth where the wolf and lamb feed together (65:17–25).
Jesus Christ read Isaiah 61:1–2 aloud in the synagogue in Nazareth and said, “This day is this scripture fulfilled in your ears” (Luke 4:16–21). He is the One who heals broken hearts and trades our ashes for beauty. In the Church today, fast Sunday usually comes once a month. Those who are able go without food and drink for two meals, pray with a purpose, and give a fast offering, at least what the meals would have cost and more if they can. The bishop uses fast offerings to help people in need, and in many wards the deacons help gather them. Anyone whose health could be affected should talk with their parents or a doctor; there are other ways to take part.
For 11- to 14-year-olds: many are fasting on their own for the first time, and “hangry” is real. Be honest that fasting is hard, and help them see the why: fasting is aimed at people and at the Lord, not at looking holy. On the Sabbath, avoid giving them a list of don’ts. Talk about what helps them feel close to the Lord and rested, and let them wrestle with the gray areas (phones, games, homework).