It shall be a statute forever throughout your generations, in all your dwelling places, that you eat neither fat nor blood.” (Leviticus 3:17 ESV)
There is nothing outside a person that by going into him can defile him, but the things that come out of a person are what defile him.” If anyone has ears to hear, let him hear. And when he had entered the house and left the people, his disciples asked him about the parable. And he said to them, “Then are you also without understanding? Do you not see that whatever goes into a person from outside cannot defile him, since it enters not his heart but his stomach, and is expelled?” (Thus he declared all foods clean.) And he said, “What comes out of a person is what defiles him. For from within, out of the heart of man, come evil thoughts, sexual immorality, theft, murder, adultery, coveting, wickedness, deceit, sensuality, envy, slander, pride, foolishness. All these evil things come from within, and they defile a person.”
(Mark 7:15-23 ESV)
The next day, as they were on their journey and approaching the city, Peter went up on the housetop about the sixth hour to pray. And he became hungry and wanted something to eat, but while they were preparing it, he fell into a trance and saw the heavens opened and something like a great sheet descending, being let down by its four corners upon the earth. In it were all kinds of animals and reptiles and birds of the air. And there came a voice to him: “Rise, Peter; kill and eat.” But Peter said, “By no means, Lord; for I have never eaten anything that is common or unclean.” And the voice came to him again a second time, “What God has made clean, do not call common.” This happened three times, and the thing was taken up at once to heaven.
(Acts 10:9-16 ESV)
As Christians the Old Testament Dietary Laws often come off to us as seeming overly restrictive and unnecessary, so we normally brush them over without much regard. Sure as Christians its true that we are not obligated to keep the Old Testament Law. Yet at the same time simply because we are not obligated to keep the letter of the Law, does not mean that we are not able to learn from it. As the whole of Torah comes from God, our creator who ultimately knows what is best for us. Just like we all know that following the Biblical sexual guidelines will protect us from sexual transmitted diseases and unwanted pregnancies. So when it comes to food, can we also assume that God knows what is best for us as well? I find it interesting that Law bans both the eating of animal blood and fat. Sure we know today that its impossible to eat meat without eating some fat, but I think its a safe assumption to take it as meaning one is avoid all visible fat when eating meat. I’m sure most churches today would freak out if it was discovered that one of their members was eating animal blood on a regular basis, and be horrified by this vampire like behavior. Yet at the same time view it as perfectly acceptable to eat visible animal fat on a regular basis with its meals. We can only speculate as to why God forbade the Hebrews from eating blood, but its a safe guess that it was a mix of the spiritual significance of holy blood sacrifice and possible health issues from eating animal blood. Although we now know that in order to maintain good health it is in one’s best interest to limit the amount of fat and especially animal fat that one eats. While I doubt its possible to strongly argue that its a sin for Christians to eat visible animal fat today, that does not mean that its in our best interest to do so. Just like the Bible speaks out against greed in both the Old and New Testaments which has traditionally been expressed as gluttony by the church in regards to greed with food. I find it interesting that today that term gluttony is for the most part no longer used by the Church today. Not that I think that we need to become more legalistic, just that God cares about gluttony because it is in our best interest to maintain or reach a healthy body weight.