Why is God so concerned that His people be careful with what He designates as holy and profane? Because these designations define His nature and His way of life.
John Ritenbaugh draws parallels between earthy (or physical) and spiritual things. The cleanliness laws in Leviticus, prescribing washing, cleansing, and quarantine procedures, apply to the spiritual dimension as well. God will not tolerate uncleanness, ei. . .
Laodiceanism is the attitude that dominates the end time. It is a subtle form of worldliness that has infected the church, and Christ warns against it strongly.