Targum zu Schemot 1:21

And forasmuch as the midwives feared before the Lord, they obtained for themselves a good name unto the ages; and the Word of the Lord up-builded for them a royal house, even the house of the high priesthood.

. Because the midwives feared before the Lord, they obtained for themselves a good name in the midst of the ages, and made unto themselves houses,? The house of the Levites and the house of the high priesthood.