Psalms 92:5

Your thoughts have been made exceedingly deep. Whatever I may think, I cannot find it out. "Your judgments are an abyss." "O the depth of the riches of the wisdom and knowledge of God." I too will say with Ecclesiastes: "I said, I will become wise: and it was made far from me, much farther than it was; and it is deep — who can find it out?" What Ecclesiastes says is this: Before I put my thought to the work, I did not see the magnificence of God. I said, I will become wise, that is, I said, I ought to seek out the reasons of the individual causes; and it was made far from me, much farther than it was, that is, the wisdom which before, not searching, I was ignorant of, afterwards I began to seek, and I could not find it out.

There are many things that might be said: but let it suffice for the faithful to have heard a few things about the mystery of the Trinity. I beg you, let there rather be a contest among us in the monastery over how we may seek to triumph over the adversary, how we may fast, how we may bewail our sins, how our thought may not drag us captive into lust, how we may have patience against every injury, how we may not resist a brother doing us an injury, but may conquer him in the humility which we have learned from Christ, "who, when he suffered, did not threaten." If ever a thought should come and add, "What is God? and what is the reason of the Trinity?", let it suffice for us to believe that he is. And we ought not rashly to seek the reason, but to fear, and always to pray to the Lord; and in this matter let us show him our knowledge alone, that day and night we may sing praises to him. To whom be glory and dominion for ever and ever. Amen.

How magnified are your works, O Lord. At this point Marcion and Manichaeus burst out. For what do they say? If God made all things, and made them for the benefit of men, what need was there to make the bedbug and the flea? I answer you briefly: so that your frailty, O man, might be shown. For you who place your thought in heaven — look, you are bitten by a bedbug and you shudder. Why are you lifted up into heaven, and why does your thought soar into heaven? Behold, you are wounded by a bedbug. How magnified are your works, O Lord. Small bodies indeed, but great design. Each has its own uses. I marvel at the Lord in the elephant just as much as in the ant; I proclaim him in the camel just as much as in the gnat. Look at the gnat, how it is like the point of some tiny body, and yet see how in that very point of a tiny body all its members are distinct. It has six feet, it has two eyes, it has a mouth and a belly, it has also a trumpet of voice, it has wings too. If you look at the members, you do not find the body; and yet God is magnified, because without a body there are all these members.