Psalms 42:2

The second verse illustrates more clearly what I have already said, that David does not simply speak of the presence of God, but of the presence of God in connection with certain symbols; for he sets before himself the tabernacle, the altar, the sacrifices, and other ceremonies by which God had testified that he would be near his people; and that it behoved the faithful, in seeking to approach God, to begin by those things. Not that they should continue attached to them, but that they should, by the help of these signs and outward means, seek to behold the glory of God, which of itself is hidden from the sight. Accordingly, when we see the marks of the divine presence engraven on the word, or on external symbols, we can say with David that there is the face of God, provided we come with pure hearts to seek him in a spiritual manner. But when we imagine God to be present otherwise than he has revealed himself in his word, and the sacred institutions of his worship, or when we form any gross or earthly conception of his heavenly majesty, we are only inventing for ourselves visionary representations, which disfigure the glory of God, and turn his truth into a lie.