'Barefoot' in the Bible

Now David [was] going up on the Ascent of the Olives, {weeping as he went}, with his head covered and going barefoot. All the people who [were] with him each covered their head {and wept as they went}.

at that time, Yahweh had spoken by the hand of Isaiah son of Amoz, saying, "Go and loosen the sackcloth from your loins, and take off your sandals from your feet," and he had done so, walking naked and barefoot.

Then Yahweh said, "Just as my servant Isaiah has walked naked and barefoot three years [as] a sign and a portent against Egypt and Cush,

so shall the king of Assyria lead the captives of Egypt and the exiles of Cush, young and old, naked and barefoot, {with bared buttocks}, the shame of Egypt.

Restrain your foot from [being] barefoot, and your throat from thirst. But you said, '[It is] hopeless. No! For I have loved strangers, and after them I will go.'

On account of this I will lament and wail. I will go about barefoot and naked. I will make a lamentation like the jackals, and a mourning ceremony like the {ostriches}.