Isaiah 58:4-6

New Catholic Bible

⁴ Your fasting only leads to quarrels and fights
    and lashing out with vicious blows.
Such fasting as you currently practice
    will not make your voice heard on high.
⁵ Is this the type of fast that pleases me,
    a day for a man to humble himself,
to bow his head like a reed
    and lie in sackcloth and ashes?
Is this what you call a fast,
    a day acceptable to the Lord?
⁶ This rather is the type of fast that I wish:
    to loosen the fetters of injustice,
    to undo the thongs of the yoke,
to set free those who are oppressed
    and to break every yoke,