Hebrews 8:7 For if that first covenant had been faultless, then should no place have been sought for the second. 8 For finding fault with them, he saith, Behold, the days come, saith the Lord, when I will make a new covenant with the house of Israel and with the house of Judah: 9 Not according to the covenant that I made with their fathers in the day when I took them by the hand to lead them out of the land of Egypt; because they continued not in my covenant, and I regarded them not, saith the Lord. 10 For this is the covenant that I will make with the house of Israel after those days, saith the Lord; I will put my laws into their mind, and write them in their hearts: and I will be to them a God, and they shall be to me a people: 11 And they shall not teach every man his neighbour, and every man his brother, saying, Know the Lord: for all shall know me, from the least to the greatest. 12 For I will be merciful to their unrighteousness, and their sins and their iniquities will I remember no more. 13 In that he saith, A new covenant, he hath made the first old. Now that which decayeth and waxeth old is ready to vanish away.
See what has been waxed away in according to the Old Covenant.
1 Timothy 4:1Now the Spirit speaketh expressly, that in the latter times some shall depart from the faith, giving heed to seducing spirits, and doctrines of devils; 2 Speaking lies in hypocrisy; having their conscience seared with a hot iron; 3 Forbidding to marry, and commanding to abstain from meats, which God hath created to be received with thanksgiving of them which believe and know the truth. 4 For every creature of God is good, and nothing to be refused, if it be received with thanksgiving: 5 For it is sanctified by the word of God and prayer. 6 If thou put the brethren in remembrance of these things, thou shalt be a good minister of Jesus Christ, nourished up in the words of faith and of good doctrine, whereunto thou hast attained.
More edification on that subject of meat below and even on the subject of the sabbath day.
Romans 14:1Him that is weak in the faith receive ye, but not to doubtful disputations. 2 For one believeth that he may eat all things: another, who is weak, eateth herbs. 3 Let not him that eateth despise him that eateth not; and let not him which eateth not judge him that eateth: for God hath received him. 4 Who art thou that judgest another man's servant? to his own master he standeth or falleth. Yea, he shall be holden up: for God is able to make him stand. 5 One man esteemeth one day above another: another esteemeth every day alike. Let every man be fully persuaded in his own mind. 6 He that regardeth the day, regardeth it unto the Lord; and he that regardeth not the day, to the Lord he doth not regard it. He that eateth, eateth to the Lord, for he giveth God thanks; and he that eateth not, to the Lord he eateth not, and giveth God thanks. 7 For none of us liveth to himself, and no man dieth to himself. 8 For whether we live, we live unto the Lord; and whether we die, we die unto the Lord: whether we live therefore, or die, we are the Lord's. 9 For to this end Christ both died, and rose, and revived, that he might be Lord both of the dead and living. 10 But why dost thou judge thy brother? or why dost thou set at nought thy brother? for we shall all stand before the judgment seat of Christ. 11 For it is written, As I live, saith the Lord, every knee shall bow to me, and every tongue shall confess to God. 12 So then every one of us shall give account of himself to God. 13 Let us not therefore judge one another any more: but judge this rather, that no man put a stumblingblock or an occasion to fall in his brother's way. 14 I know, and am persuaded by the Lord Jesus, that there is nothing unclean of itself: but to him that esteemeth any thing to be unclean, to him it is unclean. 15 But if thy brother be grieved with thy meat, now walkest thou not charitably. Destroy not him with thy meat, for whom Christ died. 16 Let not then your good be evil spoken of: 17 For the kingdom of God is not meat and drink; but righteousness, and peace, and joy in the Holy Ghost. 18 For he that in these things serveth Christ is acceptable to God, and approved of men. 19 Let us therefore follow after the things which make for peace, and things wherewith one may edify another. 20 For meat destroy not the work of God. All things indeed are pure; but it is evil for that man who eateth with offence. 21 It is good neither to eat flesh, nor to drink wine, nor any thing whereby thy brother stumbleth, or is offended, or is made weak. 22 Hast thou faith? have it to thyself before God. Happy is he that condemneth not himself in that thing which he alloweth. 23 And he that doubteth is damned if he eat, because he eateth not of faith: for whatsoever is not of faith is sin.