Sforno on Exodus 1:10/ספורנו על שמות א׳:י׳

1הבה נתחכמה לו, let us not confront them frontally but let us outflank them.

2ועלה מן הארץ, of their own volition, without our having to expel them. If we do not have adequate reason to expel them we would become pariahs among our neighbours. If we were to do that, פן ירבה והיה כי תקראנה מלחמה, so that no additional problems would beset us, such as a war (compare Samuel II 13,39 ותכל דוד המלך, the king pined away), These words should be understood as a parenthesis.

3ונוסף גם הוא על שונאינו, at such a time they may display their hatred of us seeing that they have remained culturally incompatible with us both in practicing circumcision of their males, language, and in such practices as the way they eat meat only after the blood has been removed, etc. (compare Genesis 43,32). Let us therefore induce them to leave our country before it comes to this. In order to achieve this end,