Or HaChaim on Leviticus 11:45/אור החיים על ויקרא י״א:מ״ה

1 כי אני ה׳ המעלה אתכם מארץ מצרים, "For I am the Lord who has brought you out of the land of Egypt, etc." The Torah provides proof that G'd will protect the Jewish people from becoming enmeshed in the sin of contamination by impuriy. He took the Israelites out of such a contaminated environment in which their souls were completely submerged. We have mentioned this concept on previous occasions. If the Israelites will now take active steps to preserve their isolation from such contamination, G'd will certainly do His share to see that it does not occur again. If, on the other hand, the Israelites were to absorb any of these forbidden שקצים ורמשים as nutrients, they would revert to the environment dominated by the spiritually negative forces of the world, the קליפות. In such a case G'd could not be their companion as He does not associate His name with such forces. This was the reason He never associated His name with the Israelites until after the people had left Egypt.