Written by A. W. Tozer (1897-1963), a pastor, author, magazine editor, and spiritual mentor. This is an excerpt from his book “The Knowledge of the Holy.”
Let us beware lest we in our pride accept the erroneous notion that idolatry consists only in kneeling before visible objects of adoration, and that civilized peoples are therefore free from it. The essence of idolatry is the entertainment of thoughts about God that are unworthy of Him. It begins in the mind and may be present where no overt act of worship has taken place…Wrong ideas about God are not only the fountain from which the polluted waters of idolatry flow; they are themselves idolatrous. The idolator simply imagines things about God and acts as if they were true. Perverted notions about God soon rot the religion in which they appear…We do the greatest service to the next generation of Christians by passing on to them undimmed and undiminished that noble concept of God which we received from our Hebrew and Christian fathers of generations past.
For although they knew God, they neither glorified him as God nor gave thanks to him, but their thinking became futile and their foolish hearts were darkened. [Romans 1:21]