3 'Why have we fasted, and Thou hast not seen? We have afflicted our soul, and Thou knowest not.' Lo, in the day of your fast ye find pleasure, And all your labours ye exact. 4 Lo, for strife and debate ye fast, And to smite with the fist of wickedness, Ye fast not as 'to'-day, To sound in the high place your voice. 5 Like this is the fast that I choose? The day of a man's afflicting his soul? To bow as a reed his head, And sackcloth and ashes spread out? This dost thou call a fast, And a desirable day—to Jehovah?
Matthew Henry's Commentary on Isaiah 58:3-5
Commentary on Isaiah 58:3-12
(Read Isaiah 58:3-12)
A fast is a day to afflict the soul; if it does not express true sorrow for sin, and does not promote the putting away of sin, it is not a fast. These professors had shown sorrow on stated or occasioned fasts. But they indulged pride, covetousness, and malignant passions. To be liberal and merciful is more acceptable to God than mere fasting, which, without them, is vain and hypocritical. Many who seem humble in God's house, are hard at home, and harass their families. But no man's faith justifies, which does not work by love. Yet persons, families, neighbourhoods, churches, or nations, show repentance and sorrow for sin, by keeping a fast sincerely, and, from right motives, repenting, and doing good works. The heavy yoke of sin and oppression must be removed. As sin and sorrow dry the bones and weaken the strongest human constitution; so the duties of kindness and charity strengthen and refresh both body and mind. Those who do justly and love mercy, shall have the comfort, even in this world. Good works will bring the blessing of God, provided they are done from love to God and man, and wrought in the soul by the Holy Spirit.