One area where God's law has been disregarded is in the matter of clean and unclean meats. The laws concerning clean and unclean foods, as listed in Leviticus 11:1-23 and Deuteronomy 14:3-21, are often considered obsolete, yet God's law applies to all of mankind. These laws were known and practiced even before the Flood, as seen in the account of Noah, who was commanded to take seven of every clean animal and later offered burnt offerings of clean animals and birds. Since there were no Jews or Israelites at that time, these laws are clearly intended for all humankind. Genesis 9:3, where God tells Noah that every moving thing that lives shall be food, must be understood within the same parameters as the green herbs, meaning that just as certain plants are harmful and not to be eaten, so are certain meats. All reviewed scriptures confirm that the law concerning clean and unclean meats remains in effect today. God's laws are given for our benefit, as He only provides good things, and we should trust that our Maker knows what is good for His creatures and put these laws into practice in our lives.

The law of clean and unclean meats stands as a vital command, representing numerous laws that protect against physical and spiritual impurity, directly tied to the pursuit of holiness, without which no one will see the Lord. This law underscores the principle of sanctification and holiness, marking God's people as distinct and set apart for a special purpose, a responsibility that extends to Christians as spiritual Israelites to be holy as God is. As the spiritual temple of God, Christians are duty-bound to cleanse themselves of defilements of the flesh, perfecting holiness in all areas of life, both physical and spiritual, by avoiding what is unclean. This law was known before the Old Covenant, evident in Noah's time and possibly in Abel's, showing it was not made obsolete with the passing of that covenant. God provides clear guidance on what foods are clean or unclean, listing specific foods and criteria to identify others not mentioned. Christ did not abolish this law; His teachings addressed ritual washings added by the Jews, not the status of unclean meats, emphasizing that true defilement comes from a man's conduct rather than food. Similarly, Peter's vision did not nullify this law but taught that no man should be called common or unclean, with no mention of foods in the related dispute. Paul's writings also do not permit the eating of unclean meats; his discussions focus on clean meats offered to idols, stressing sensitivity to a brother's conscience rather than altering dietary laws. In God's Kingdom, the law of clean and unclean will remain in force, with the priesthood teaching the difference during the Millennium, and in the New Jerusalem, nothing that defiles will be present, as all citizens will be holy. Following this law is part of preparing for that wonderful destiny.

The Day of Atonement emphasizes the cleansing of all defilement, highlighting the importance of purity in every area of life. Holiness stands as the opposite of being adulterated, corrupted, or contaminated, setting one apart as acceptable in God's presence. Foolishness, like more obvious sins, is defiling and can be physically dangerous, separating one from God. The underlying instruction of clean and unclean laws in Scripture aims to keep one free from spiritual defilement and to provide a means of cleansing if defilement occurs. Obedience to these laws was a rigorous requirement, intended to teach the importance of being clean bodily, mentally, and in conduct and attitudes. Uncleanness is not acceptable to God, and the impossibility of fully adhering to these laws mirrors the pervasive nature of spiritual defilement from sin, which touches everything and everyone. On the Day of Atonement, the cleansing extends beyond the individual sinner to encompass every aspect of sin committed by every Israelite during the year. This includes the priest, the priesthood, the people, the mercy seat, the altar, the holy place, and the tabernacle itself, all purified in one ceremony. This portrays the leavening effect of sin and foolishness, impacting the entire fellowship, showing that the foolishness of worshippers transfers defilement to sacred spaces and must be cleansed annually through the effective power of blood, symbolizing a complete covering of sin's debt.