14 For if there be error in you, You will not worship a strange god. If you think not of a false god, you will not worship a manufactured god: for “there will not” be in you any strange god. “For I am.” Why would you adore what is not? “For I am the Lord your God”. Because “I am I that Am,” and indeed “I Am” He says, I that Am, over every creature: yet to you what good have I afforded in time? “Who brought you out of the land of Egypt.” Not to that people alone is it said. For we all were brought out of the land of Egypt, we have all passed through the Red Sea; our enemies pursuing us have perished in the water. Let us not be ungrateful to our God; let us not forget God that abides, and fabricate in ourselves a new god. “I, who led you out of the land of Egypt,” says God. “Open wide your mouth, and I will fill it.” You suffer straitness in yourself because of the new god set up in your heart; break the vain image, cast down from your conscience the feigned idol: “open wide your mouth,” in confessing, in loving: “and I will fill it,” because with me is the fountain of life.
15. “And My people obeyed not My voice”. For He would not speak these things except to His own people. For, “we know that whatsoever things the Law says, it says to them that are in the Law.” “And Israel did not listen to Me.” Who? To whom? Israel to Me. O ungrateful soul! Through Me the soul, by Me the soul called, by Me brought back to hope, by Me washed from sins! “And Israel did not listen to Me!” For they are baptized and pass through the Red Sea: but on the way they murmur, gainsay, complain, are stirred with seditions, ungrateful to Him who delivered them from pursuing enemies, who leads through the dry land, through the desert, yet with food and drink, with light by night and shade by day.
16. “And I let them go according to the affections of their heart”. Behold the press: the orifices are open, the lees run. “And I let them go,” not according to the healthfulness of My commands; but, according to the affections of their heart: I gave them up to themselves. The Apostle also says, “God gave them up to the desires of their own hearts.” “I let them go according to the affection of their heart, they shall go in their own affections.” There is what ye shudder at, if at least you are straining out into the hidden vats of the Lord, if at least you have conceived a hearty love for His storehouses, there is what ye shudder at. Some stand up for the circus, some for the amphitheatre, some for the booths in the streets some for the theatres, some for this, some for that, some finally for their “new gods;” “they shall go in their own affections.”
17. “If My people would have heard Me, if Israel would have walked in My ways”. For perchance that Israel says, Behold I sin, it is manifest, I go after the affections of my own heart: but what can I do? The devil does this. Demons do this. What is the devil? Who are the demons? Certainly your enemies. “Unto nothing all their enemies I would have brought down; and on them that oppress them I would have sent forth My hand”. But now what have they to do to complain of enemies? Themselves have become the worse enemies. For how? What follows? Of enemies ye complain, yourselves, what are you?
18. “The enemies of God have lied unto Him”. Do you renounce? I renounce. And he returns to what he renounced. In fact, what things do you renounce, except bad deeds, diabolical deeds, deeds to be condemned of God, thefts, plunderings, perjuries, manslayings, adulteries, sacrileges, abominable rites, curious arts....
Source: The Enarrations, or Expositions, on the Psalms (New Advent)