At that time Egypt had a new king who did not know Joseph, he took no time to find out who blessed the Israelites and why they were so blessed. The bible says “And the Egyptians made the children of Israel to serve with rigor: and they made their lives bitter with hard bondage, in mortar, and in brick, and in all manner of service in the field: all their service, wherein they made them serve, was with rigor.” Exodus 1:13-14 (rigor is extreme conditions)