This is simple stuff folks...
Acts 10:9 About noon the following day as they were on their journey and approaching the city, Peter went up on the roof to pray. 10 He became hungry and wanted something to eat, and while the meal was being prepared, he fell into a trance. 11 He saw heaven opened and something like a large sheet being let down to earth by its four corners. 12 It contained all kinds of four-footed animals, as well as reptiles of the earth and birds of the air. 13 Then a voice told him, "Get up, Peter. Kill and eat."
14 "Surely not, Lord!" Peter replied. "I have never eaten anything impure or unclean."
15 The voice spoke to him a second time, "Do not call anything impure that God has made clean." 16 This happened three times, and immediately the sheet was taken back to heaven. NIV
Here we are RELEASED from all dietary laws. We were actually released from this on the cross, but the Apostles just didn't "get it".
Acts 15:19 "It is my judgment, therefore, that we should not make it difficult for the Gentiles who are turning to God. 20 Instead we should write to them, telling them to abstain from food polluted by idols, from sexual immorality, from the meat of strangled animals and from blood. 21 For Moses has been preached in every city from the earliest times and is read in the synagogues on every Sabbath." NIV
Here we are a scant five chapters later, and it is apparent that the apostles are STILL hung up on dietary laws.
I Corinthians 8:1 Now about food sacrificed to idols: We know that we all possess knowledge. Knowledge puffs up, but love builds up. 2 The man who thinks he knows something does not yet know as he ought to know. 3But the man who loves God is known by God.
4 So then, about eating food sacrificed to idols: We know that an idol is nothing at all in the world and that there is no God but one. 5 For even if there are so-called gods, whether in heaven or on earth (as indeed there are many "gods" and many "lords"), 6 yet for us there is but one God, the Father, from whom all things came and for whom we live; and there is but one Lord, Jesus Christ, through whom all things came and through whom we live.
7 But not everyone knows this. Some people are still so accustomed to idols that when they eat such food they think of it as having been sacrificed to an idol, and since their conscience is weak, it is defiled. 8 But food does not bring us near to God; we are no worse if we do not eat, and no better if we do. 9 Be careful, however, that the exercise of your freedom does not become a stumbling block to the weak. 10 For if anyone with a weak conscience sees you who have this knowledge eating in an idol's temple, won't he be emboldened to eat what has been sacrificed to idols? 11 So this weak brother, for whom Christ died, is destroyed by your knowledge. 12 When you sin against your brothers in this way and wound their weak conscience, you sin against Christ. 13 Therefore, if what I eat causes my brother to fall into sin, I will never eat meat again, so that I will not cause him to fall. NIV
Now, the REAL teaching is making it through. Meat sacrificed to idols means NOTHING. But not everyone understands that. Can you see how the Apostles have GROWN in their faith? They went from FORBIDDING something to encouraging disciples to participate. Wow!
I Corinthians 10:23 "Everything is permissible"but not everything is beneficial. "Everything is permissible"but not everything is constructive. 24 Nobody should seek his own good, but the good of others.
25 Eat anything sold in the meat market without raising questions of conscience, 26 for, "The earth is the Lord's, and everything in it."
27 If some unbeliever invites you to a meal and you want to go, eat whatever is put before you without raising questions of conscience. 28 But if anyone says to you, "This has been offered in sacrifice," then do not eat it, both for the sake of the man who told you and for conscience' sake 29 the other man's conscience, I mean, not yours. For why should my freedom be judged by another's conscience? 30 If I take part in the meal with thankfulness, why am I denounced because of something I thank God for? 31 So whether you eat or drink or whatever you do, do it all for the glory of God. 32 Do not cause anyone to stumble, whether Jews, Greeks or the church of God 33 even as I try to please everybody in every way. For I am not seeking my own good but the good of many, so that they may be saved. NIV
Now we have some very VALUABLE background for Romans 14. There was a reason they mistakenly saw that those who ate meat were more spiritual. They took the teaching and sorta kinda missed the point. But all of us are GROWING in our understanding of God. Even the Apostles.