'Fast' in the Bible

'Why do we fast, and you do not see [it]? We humiliate our soul, and you do not notice [it]?' Look! You find delight on the day of your fast, and you oppress all your workers!

Look! You fast to quarrel and strife, and to strike with a {wicked fist}. You shall not fast as [you do] {today}, to {make your voice heard} on the height.

Is [the] fast I choose like this, a day for humankind to humiliate {himself}? To bow his head like a reed, and {make} his bed [on] sackcloth and ashes; you call this a fast and a day of pleasure to Yahweh?

Is this not [the] fast I choose: to release [the] bonds of injustice, to untie [the] ropes of [the] yoke, and to let [the] oppressed go free, and {tear} every yoke to pieces?