'Humiliate' 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!

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?