At the sound of the hooves of galloping steeds, at the noise of enemy chariots and the rumble of their wheels. Parents will not turn to help their children; their hands will hang limp.
NIV
At the noise of the stamping of the hoofs of [the Chaldean king's] war-horses, at the rattling of his chariots, and at the rumbling of his wheels, the fathers do not look back to their children, so feeble are their hands [with terror]AMP
At the noise of the stamping of the hoofs of his strong horses, at the rushing of his chariots, and at the rumbling of his wheels, the fathers shall not look back to their children for feebleness of hands;
KJV