'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.

Also the tree of the field will yield its fruit and the earth will yield its increase, and they will be secure on their land. Then they will know that I am the Lord, when I have broken the bars of their yoke and have delivered them from the hand of those who enslaved them.

and you will say, ‘I will go up against the land of unwalled villages. I will go against those who are at rest, that live securely, all of them living without walls and having no bars or gates,