Exodus 1:9-10

and he saith unto his people, `Lo, the people of the sons of Israel is more numerous and mighty than we;

give help! let us act wisely concerning it, lest it multiply, and it hath come to pass, when war happeneth, that it hath been joined, even it, unto those hating us, and hath fought against us, and hath gone out up of the land.'