Commentaries:
God wants us to worship Him directly—not through an idol. When we set up an idol, we are in fact sacrificing to one or more demons! God wants us to worship Him humbly rather than the way the world worships idols. It is degrading to worship an idol. Conversely, God calls us into His own spiritual presence to worship Him directly. Whenever we stop short of our face-to-face relationship and worship of our sovereign God by placing a visible entity before Him, we break the second commandment. God looks to those who worship Him in humility and respectful fear and despises those who choose their own ways.
Martin G. Collins
The Second Commandment