Isaiah 58 - ESV

“Is not this the fast that I choose:
to loose the bonds of wickedness,
to undo the straps of the yoke,
to let the oppressed go free,
and to break every yoke?”

“If you turn back your foot from the Sabbath,
from doing your pleasure on my holy day,
and call the Sabbath a delight
and the holy day of the Lord honorable;
if you honor it, not going your own ways,
or seeking your own pleasure, or talking idly;
then you shall take delight in the Lord,
and I will make you ride on the heights of the earth;
I will feed you with the heritage of Jacob your father,
for the mouth of the Lord has spoken.”