Isaiah 58:3-7 New Revised Standard Version (NRSV)
3 “Why do we fast, but you do not see?
Why humble ourselves, but you do not notice?”
Look, you serve your own interest on your fast day,
and oppress all your workers.
4 Look, you fast only to quarrel and to fight
and to strike with a wicked fist.
Such fasting as you do today
will not make your voice heard on high.
5 Is such the fast that I choose,
a day to humble oneself?
Is it to bow down the head like a bulrush,
and to lie in sackcloth and ashes?
Will you call this a fast,
a day acceptable to the Lord?
6 Is not this the fast that I choose:
to loose the bonds of injustice,
to undo the thongs of the yoke,
to let the oppressed go free,
and to break every yoke?
7 Is it not to share your bread with the hungry,
and bring the homeless poor into your house;
when you see the naked, to cover them,
and not to hide yourself from your own kin?