4 There is another point to be observed in the hart. It is reported of stags...that when they either wander in the herds, or when they are swimming to reach some other parts of the earth, that they support the burdens of their heads on each other, in such a manner as that one takes the lead, and others follow, resting their heads upon him, as again others who follow do upon them, and others in succession to the very end of the herd; but the one who took the lead in bearing the burden of their heads, when tired, returns to the rear, and rests himself after his fatigue by supporting his head just as did the others; by thus supporting what is burdensome, each in turn, they both accomplish their journey, and do not abandon each other. Are they not a kind of “harts” that the Apostle addresses, saying, “Bear ye one another's burdens, and so fulfil the Law of Christ”?...
5. “My soul is thirsty for the living God”. What I am saying, that “as the hart pants after the water-brooks, so longs my soul after You, O God,” means this, “My soul is thirsty for the living God.” For what is it thirsty? “When shall I come and appear before God?” This it is for which I am thirsty, to “come and to appear before Him.” I am thirsty in my pilgrimage, in my running; I shall be filled on my arrival. But “When shall I come?” And this, which is soon in the sight of God, is late to our “longing.” “When shall I come and appear before God?” This too proceeds from that “longing,” of which in another place comes that cry, “One thing have I desired of the Lord; that will I seek after; that I may dwell in the house of the Lord all the days of my life.” Wherefore so? “That I may behold” (he says) “the beauty of the Lord.” “When shall I come and appear before the Lord?”...
6. “My tears have been my meat day and night, while they daily say unto me, Where is your God?”. My tears (he says) have been not bitterness, but “my bread.” Those very tears were sweet unto me: being thirsty for that fountain, inasmuch as I was not as yet able to drink of it, I have eagerly made my tears my meat. For he said not, “My tears became my drink,” lest he should seem to have longed for them, as for “the water-brooks:” but, still retaining that thirst wherewith I burn, and by which I am hurried away towards the water-brooks, “My tears became my meat,” while I am not yet there. And assuredly he does but the more thirst for the water-brooks from making his tears his meat....“And they daily say unto me, Where is your God?” For if a Pagan should say this to me, I cannot retort it upon him, saying, “Where is yours?” inasmuch as he points with his finger to some stone, and says, “Lo, there is my God!” When I have laughed at the stone, and he who pointed to it has been put to the blush, he raises his eyes from the stone, looks up to heaven, and perhaps says, pointing his finger to the Sun, “Behold there my God! Where, I pray, is your God?” He has found something to point out to the eyes of the flesh; whereas I, on my part, not that I have not a God to show to him, cannot show him what he has no eyes to see. For he indeed could point out to my bodily eyes his God, the Sun; but what eyes has he to which I might point out the Creator of the Sun?...
7. “I thought on these things, and poured out my soul above myself”. When would my soul attain to that object of its search, which is “above my soul,” if my soul were not to “pour itself out above itself”? For were it to rest in itself, it would not see anything else beyond itself; and in seeing itself, would not, for all that, see God. Let then my insulting enemies now say, “Where is your God?” aye, let them say it! I, so long as I do not “see,” so long as my happiness is postponed, make my tears my “bread day and night.” Let them still say, “Where is your God?” I seek my God in every corporeal nature, terrestrial or celestial, and find Him not: I seek His Substance in my own soul, and I find it not, yet still I have thought on these things, and wishing to “see the invisible things of my God, being understood by the things made,” I have poured forth my soul above myself, and there remains no longer any being for me to attain to, save my God. For it is “there” is the “house of my God.” His dwelling-place is above my soul; from thence He beholds me; from thence He created me; from thence He directs me and provides for me; from thence he appeals to me, and calls me, and directs me; leads me in the way, and to the end of my way....
Source: The Enarrations, or Expositions, on the Psalms (New Advent)