Isaiah 58

“Cry aloud! Don’t spare! Lift up your voice like a trumpet! Declare to my people their disobedience, and to the house of Jacob their sins.

Yet they seek me daily, and delight to know my ways. As a nation that did righteousness, and didn’t forsake the ordinance of their God, they ask of me righteous judgments. They delight to draw near to God.

‘Why have we fasted,’ they say, ‘and you don’t see? Why have we afflicted our soul, and you don’t notice?’ “Behold, in the day of your fast you find pleasure, and oppress all your laborers.

Behold, you fast for strife and contention, and to strike with the fist of wickedness. You don’t fast today so as to make your voice to be heard on high.

Is this the fast that I have chosen? A day for a man to humble his soul? Is it to bow down his head like a reed, and to spread sackcloth and ashes under himself? Will you call this a fast, and an acceptable day to the LORD?

“Isn’t this the fast that I have chosen: to release the bonds of wickedness, to undo the straps of the yoke, to let the oppressed go free, and that you break every yoke?

Isn’t it to distribute your bread to the hungry, and that you bring the poor who are cast out to your house? When you see the naked, that you cover him; and that you not hide yourself from your own flesh?

Then your light will break out as the morning, and your healing will appear quickly; then your righteousness shall go before you, and the LORD’s glory will be your rear guard.

Then you will call, and the LORD will answer. You will cry for help, and he will say, ‘Here I am.’ “If you take away from among you the yoke, finger pointing, and speaking wickedly;

and if you pour out your soul to the hungry, and satisfy the afflicted soul, then your light will rise in darkness, and your obscurity will be as the noonday;

and the LORD will guide you continually, satisfy your soul in dry places, and make your bones strong. You will be like a watered garden, and like a spring of water whose waters don’t fail.

Those who will be of you will build the old waste places. You will raise up the foundations of many generations. You will be called Repairer of the Breach, Restorer of Paths with Dwellings.

“If you turn away your foot from the Sabbath, from doing your pleasure on my holy day, and call the Sabbath a delight, and the holy of the LORD honorable, and honor it, not doing your own ways, nor finding your own pleasure, nor speaking your own words,

then you will delight yourself in the LORD, and I will make you to ride on the high places of the earth, and I will feed you with the heritage of Jacob your father;” for the LORD’s mouth has spoken it.

Chapter overviewAI-generated

Overview.
This chapter confronts hollow religious practice by calling for genuine repentance and justice, emphasizing that true worship is inseparable from righteous living. The prophet denounces the people’s fasting and piety as self-serving while they neglect the poor, oppress workers, and perpetuate injustice. God reveals that the worship He desires includes liberation for the oppressed, care for the hungry, and Sabbath holiness—acts that reflect His character and lead to restoration and blessing.

Flow.

The call to cry aloud (v. 1) sets the tone: God charges the people with rebellion despite their outward devotion (v. 2).
Their complaint about unanswered fasting (v. 3a) is met with exposure: their fasts coincide with oppression and conflict (v. 3b–4).
God reframes true fasting as liberation, charity, and solidarity with the suffering (v. 6–7), promising covenantal blessings—light, healing, and divine presence (v. 8–11).
Obedience culminates in Sabbath keeping (v. 13), which leads to renewal, inheritance, and restoration of the community (v. 12, 14).

Connections.
Following chapter 57, which indicts idolatry and false comfort while promising hope to the contrite, chapter 58 applies that call to authentic faith in concrete ethical and liturgical terms. Where chapter 57 ends with God reviving the humble (Isa. 57:15), chapter 58 defines that humility as justice and self-denial. The restoration promised at the close of this chapter—building ruins, raising foundations (Isa. 58:12)—is taken up in chapter 59, which confronts continued sinfulness even amid religious show, showing how unrepented injustice separates from God (Isa. 59:2), yet sets the stage for divine intervention.

What it teaches.
True worship is defined not by ritual alone but by justice, mercy, and humility before God. External acts like fasting are empty when not joined to love for neighbor and obedience to God’s moral law (WCF 19.1). The command to loose the bonds of injustice and care for the hungry reflects the weightier matters of the law (HC LD 31, Q/A 86), flowing from a heart renewed by grace. The Sabbath, as a covenant sign (Ex. 20:8–11), is not discarded but upheld as a delight when kept in spirit and truth—ceasing from self-pleasure to honor God (WLC Q/A 117). This harmony of piety and justice is the fruit of faith that works through love (BC Art. 24).

Apply.
When you give of yourself for the hungry and oppressed, you walk in the way that God has prepared for His people.

AI-generated. Not a substitute for Scripture, your pastor, or the confessions.