"This is just what John Calvin meant to affirm in his notion of the sensus divinitatus, an "awareness of divinity"; "There is within the human mind, and indeed by natural instinct, an awareness of divinity."  (He later describes the same phenomenon, the same structure, as the "seed of religion.")  By this, Calvin does not mean to indicate that all human beings have a feeble, insufficient "knowledge" of God; he says that all human beings exhibit a "sense" of "divinity" (sensus divinitatis), not a "knowledge" of "God" (as if he spoke of a "natural" scientia Dei).  This is best understood not as a primarily intellectual disposition to form theistic beliefs but as a passional disposition to worship.  Sin and the Fall may eradicate true knowledcge of God because such requires a relationality that is lost by the Fall; but Sin and the Fall cannot eradicate this seed of religion, this impulsion to worship.  Thus for Calvin, even idolatry is a testament to humanity's essentially fallen nature..."

--James K.A. Smith, Desiring the Kingdom, 122-123