Exodus 1:11-14

CLV(i) 11 Hence they placed over them chiefs of labor conscriptions that they might humiliate them with their burdens. So they were building as bulwark cities for Pharaoh, Pithom and Raamses. 12 Yet just as they were humiliating them so they multiplied and so they breached forth. Hence the Egyptians were irritated in view of the sons of Israel. 13 So the Egyptians made the sons of Israel serve with rigor, 14 and they embittered their lives with hard service in clay and in bricks, and with all service in the field, in addition to all their service which they served among them with rigor.