Sforno on Leviticus 11:45/ספורנו על ויקרא י״א:מ״ה

1כי אני ה' המעלה אתכם מארץ מצרים להיות לכם לאלוקים. It is no more than appropriate that you do all this in order to attain this level of holiness in order to carry out My will; for indeed when I took you out of Egypt this was expressly in order for you to achieve this spiritual level and for Me to be your G’d, a G’d to Whom you could relate directly without any intermediary. You are meant to be holy forever by emulating My attributes and My way of thinking, in other words, you are to emulate that part of Me which I describe as קדוש, holy, beyond compare.