'Thongs' in the Bible

Is not this the fast which I have chosen: to loose the bands of wickedness, to undo the thongs of the yoke, and to send forth free the crushed, and that ye break every yoke?

Thus says the Lord to me, “Make for yourself bonds and yokes and put them on your neck,

And as they bound him with thongs, Paul said unto the centurion that stood by, Is it lawful for you to scourge a man that is a Roman, and uncondemned?