4 Let us therefore, brethren, abstain from the possession of private property; or from the love of it, if we may not from its possession; and we make a place for the Lord. It is too much for me, says some one. But consider who you are, who art about to make a place for the Lord. If any senator wished to be entertained at your house, I say not senator, the deputy of some great man of this world, and should say, something offends me in your house; though you should love it, you would remove it, nevertheless, lest you should offend him, whose friendship you were courting. And what does man's friendship profit you?...Desire the friendship of Christ without fear: He wishes to be entertained at your house; make room for Him. What is, make room for Him? Love not yourself, love Him. If you love yourself, you shut the door against Him; if you love Him, you open unto Him: and if you open and He enter, you shall not be lost by loving yourself, but shall find yourself with Him who loves you....
5. “Lo, we heard of the same at Ephrata”. What? A place for the Lord. “We heard of it at Ephrata: and found it in the plains of the forests.” Did he hear it where he found it? Or did he hear it in one place, find it in another? Let us therefore enquire what Ephrata is, where he heard it; let us also enquire what mean the plains of the forests, where he found it. Ephrata, a Hebrew word, is rendered in Latin by Speculum, as the translators of Hebrew words in the Scriptures have handed down to us, that we might understand them. They have translated from Hebrew into Greek, and from Greek we have versions into Latin. For there have been who watched in the Scriptures. If therefore Ephrata means a mirror, that house which was found in the woodland plains, was heard of in a mirror. A mirror has an image: all prophecy is an image of things future. The future house of God, therefore, was declared in the image of prophecy. “We have found it in the plains of the forests.” What are the “plains of the forests”? Saltus is not here used in its common sense, as a plot of ground of so many hundred acres; saltus properly signifies a spot as yet untilled and woody. For some copies read, in the plains of the wood. What then were the woodland plains, save nations yet untilled? What were they, save regions yet covered with the thorns of idolatry? Thus, though there were thorns of idolatry there, still we find a place for the Lord there, a tabernacle for the God of Jacob. What was declared in the image to the Jews, was manifested in the faith of the Gentiles.
6. “We will go into His tabernacles”. Whose? Those of the Lord God of Jacob. They who enter to dwell therein, are the very same who enter that they may be dwelt in. You enter into your house, that you may dwell therein; into the house of God, that you may be dwelt in. For the Lord is better, and when He has begun to dwell in you, He will make you happy. For if you be not dwelt in by Him, you will be miserable. That son who said, “Father, give me the portion of the goods,” etc., wished to be his own master. It was well kept in his father's hands, that it might not be wasted with harlots. He received it, it was given into his own power; going to a far country, he squandered it all with harlots. At length he suffered hunger, he remembered his father; he returned, that he might be satisfied with bread. Enter therefore, that you may be dwelt in; and may be not your own, so to speak, but His: “We will go into His tabernacles. We will worship on the spot where His feet stood.” Whose feet? The Lord's, or those of the house of the Lord itself? For that is the Lord's house, wherein he says He ought to be worshipped. Beside His house, the Lord hears not unto eternal life; for he belongs to God's house, who has in charity been built in with living stones. But he who has not charity, falls; and while he falls, the house stands....
Source: The Enarrations, or Expositions, on the Psalms (New Advent)