Leviticus 11:3
"Whatsoever parteth the hoof, and is clovenfooted, and cheweth the cud, among the beasts, that shall ye eat."
Cross References (ranked by relevance)
When wisdom entereth into thine heart, and knowledge is pleasant unto thy soul;
Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you,
Meditate upon these things; give thyself wholly to them; that thy profiting may appear to all.
Forsake the foolish, and live; and go in the way of understanding.
These were more noble than those in Thessalonica, in that they received the word with all readiness of mind, and searched the scriptures daily, whether those things were so.