The priests shall teach My people the difference between the holy and the common, and teach them to distinguish between the (ceremonially) unclean and the clean. – Ezekiel 44:23
We can see something like this today where contemporary worship, more often than not, is serving the purposes of people or church meetings and establishing an ‘atmosphere’ conducive to our spiritual enjoyment. But let us not call that worship. Any act which is not exclusively for God, but serves the purposes of people by whatever name it’s called is ipso facto no longer worship. Worship is exclusively a priestly service unto God, for His benefit, His blessing, His delight and His honouring, or it is not worship at all. But in our time, has not praise and worship become a kind of ‘business’ all of its own displaying its ‘worship leaders and teams’? Does it not seem that Churches are more noted for their worship, when it is nothing much more than enjoyable and uplifting music? – Art Katz
Persons and things; not in a ceremonial, nor merely in a moral, but in an evangelical sense, between truth and error; between the doctrine which is according to godliness, and that which is corrupt and unsound, and eats as cloth a canker; between holy worship, and superstition; between holy duties, and profane and Heathen rites and ceremonies; and between persons sanctified by the Spirit and grace of God, and unconverted ones. – Gill
God is holy. Everything that is from Him is holy. On the other hand, the things originating with people are secular, ordinary, common, or “worldly” as Webster’s Dictionary defines it. God requires His people to distinguish between the holy and the secular things. To treat the holy as something common, or to treat the common as something holy, makes one guilty of showing irreverence [a profaning] toward God and the holy [sacred] things. God has taught us to know the difference (through the Scriptures, which are, by the way, holy), which the world cannot understand.
We also speak of these things, not in words taught or supplied by human wisdom, but in those taught by the Spirit, combining and interpreting spiritual thoughts with spiritual words [for those being guided by the Holy Spirit]. But the natural [unbelieving] man does not accept the things [the teachings and revelations] of the Spirit of God, for they are foolishness [absurd and illogical] to him; and he is incapable of understanding them, because they are spiritually discerned and appreciated, [and he is unqualified to judge spiritual matters].—1 Corinthians 2:13,14
Paul voiced the Spirit’s warning that we still have to choose carefully what we permit lest we practice those things that may well be mortal but fail nevertheless in passing spiritual muster when making an offering of service or worship to God.
When a person becomes a child of God by the regenerating power of the Spirit, giving them new life as they trusts in the atoning work of Christ, they do not at the same time receive fullness of knowledge, either about God, themselves or Satan.
Christ’s ministry does not void God’s law. Instead, God writes that law on the heart of those who accept this covenant so that it becomes a part of their mind and way of thinking. Remember, Jesus said He didn’t come to abolish the law. The New Covenant, of which Jesus is our High Priest, has “better promises”, not better law. The better promises include eternal life as well as the promise of God’s Spirit, which empowers us to live according to God’s laws.