(24) God is Spirit, and those who worship Him must worship in spirit and truth."
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The second commandment deals with how we worship. The worship of God involves the totality of life, and thus it cannot be confined to a particular location or concentrated in a mere hour or two on a given day.
Our focus in worship is to be on imitating Him in the totality of life. We are to use no material aids in doing this because no one can capture in a work of art what God is. God wants us to concentrate on what He is, not on what He looks like. However, given human nature's strong attraction to the physical, it is not easy for a person to surrender the dominance of the physical over his life. A person's first step backward from conversion is usually to become grudgingly willing to share time and energy that should go to God with someone or something else.
When asked what the first and great commandment of the law is, Jesus replied, quoting Deuteronomy 6:5,"You shall love the Lord your God with all your heart, with all your soul, and with all your mind" (Matthew 22:37). Anything less will affect the quality of our worship. This is a high pinnacle to reach for, requiring a lifetime of growth in wisdom, knowledge, understanding, and character built by overcoming the world, the flesh, and the Devil.
— John W. Ritenbaugh