The principles upheld in Begg's Anarchy In Worship are extremely important today, for as the title page notes "When nations are to perish in their sins, 'Tis in the Church the leprosy begins." Begg lays his foundations in the second commandment and deals with all man-made innovations in the worship of God.

The four types of innovators exposed are especially interesting, being:

• the presumptuous and blasphemous innovator
• the popularity-hunting innovator
• the politic and scheming innovator 
• the aesthetic innovator 

Women preachers, drama, dance and numerous other modern inventions in public worship would all be rejected outright if these biblical principles were faithfully followed.

Herein we also see why those holding to the Scriptural law of worship and the Westminster Confession of Faith must reject musical instruments in public worship as just another Popish and Judaizing innovation - a resurrecting of the abrogated ceremonial law - and thus a denial of the finished work of Christ.

The discussion of vows taken by office holders to the Westminster Confession of Faith (WCF), as they relate to worship, is also extremely important and should be read not only by all elders who have bound themselves to uphold the WCF, but also by all Christians who love the truth and want to maintain the church in purity.