'Bars' in the Bible

“In Tehaphnehes the day will be darkWhen I break there the yoke bars of Egypt.Then the pride of her power will cease in her;A cloud will cover her,And her daughters will go into captivity.

The trees of the field will give their fruit, and the land will yield its produce; My flock will be secure in their land. They will know that I am Yahweh when I break the bars of their yoke and rescue them from the hands of those who enslave them.

And thou shalt say, I will go up to the land of unwalled villages; I will go to them that are at rest, that dwell safely, all of them dwelling without walls, and having neither bars nor gates,