(a) We have one world that we all inhabit, with the same fruits we all are fed. But these are small matters: by the same Sacraments we partake of the same spiritual food. These surely are justifications of loving! (c) Mark how many (inducements and pleas) for friendship they that are without have excogitated; community of art or trade, neighborhood, relationships: but mightier than all these are the impulses and ties which are among us: this Table is calculated more (than all else) to shame us into friendliness.
But many of us who come thereto do not even know one another. The reason, it may be said, is that there are so many of them. By no means; it is only our own sluggish indifference. (Once) there were three thousand — there were five thousand — and yet they had all one soul: but now each knows not his brother, and is not ashamed to lay the blame on the number, because it is so great! Yet he that has many friends is invincible against all men: stronger he than any tyrant. Not such the safety the tyrant has with his body-guards, as this man has with his friends.
Moreover, this man is more glorious than he: for the tyrant is guarded by his own slaves, but this man by his peers: the tyrant, by men unwilling and afraid of him; this man by willing men and without fear. And here too is a wonderful thing to be seen— many in one, and one in many. (a) Just as in an harp, the sounds are diverse, not the harmony, and they all together give out one harmony and symphony, (c) I could wish to bring you into such a city, were it possible, wherein (all) should be one soul: then should you see surpassing all harmony of harp and flute, the more harmonious symphony.
(b) But the musician is the Might of Love: it is this that strikes out the sweet melody, (d) singing, (withal) a strain in which no note is out of tune. This strain rejoices both Angels, and God the Lord of Angels; this strain rouses (to hear it) the whole audience that is in heaven; this even lulls (evil) passions— it does not even suffer them to be raised, but deep is the stillness. For as in a theatre, when the band of musicians plays, all listen with a hush, and there is no noise there; so among friends, while Love strikes the chords, all the passions are still and laid to sleep, like wild beasts charmed and unnerved: just as, where hate is, there is all the contrary to this.
But let us say nothing just now about enmity; let us speak of friendship. Though thou let fall some casual hasty word, there is none to catch you up, but all forgive you; though thou do (some hasty thing), none puts upon it the worse construction, but all allowance is made: every one prompt to stretch out the hand to him that is falling, every one wishing him to stand. A wall it is indeed impregnable, this friendship; a wall, which not the devil himself, much less men, can overpower.
It is not possible for that man to fall into danger who has gotten many friends. (Where love is) no room is there to get matter of anger, but only for pleasantness of feeling: no room is there to get matter of envying; none, to get occasion of resentment. Mark him, how in all things both spiritual and temporal, he accomplishes all with ease. What then, I pray you, can be equal to this man? Like a city walled on every side is this man, the other as a city unwalled.— Great wisdom, to be able to be a creator of friendship!
Take away friendship, and you have taken away all, you have confounded all. But if the likeness of friendship have so great power, what must the reality itself be? Then let us, I beseech you, make to ourselves friends, and let each make this his art. But, lo! You will say, I do study this, but the other does not. All the greater the reward to you. True, say you, but the matter is more difficult. How, I ask? Lo! I testify and declare to you, that if but ten of you would knit yourselves together, and make this your work, as the Apostles made the preaching theirs, and the Prophets theirs the teaching, so we the making of friends, great would be the reward.
Let us make for ourselves royal portraits. For if this be the common badge of disciples, we do a greater work than if we should put ourselves into the power to raise the dead. The diadem and the purple mark the Emperor, and where these are not, though his apparel be all gold, the Emperor is not yet manifest. So now you are making known your lineage. Make men friends to yourself, and (friends) to others. There is none who being loved will wish to hate you. Let us learn the colors, with what ingredients they are mixed, with what (tints) this portrait is composed.
Let us be affable: let us not wait for our neighbors to move. Say not, if I see any person hanging back (for me to make the first advances), I become worse than he: but rather when you see this, forestall him, and extinguish his bad feeling. Do you see one diseased, and add to his malady? This, most of all, let us make sure of— “in honor to prefer one another, to account others better than one's self”, deem not this to be a lessening of yourself. If you prefer (another) in honor, you have honored yourself more, attracting to yourself a still higher extinction.
On all occasions let us yield the precedence to others. Let us bear nothing in mind of the evil done to us, but if any good has been done (let us remember only that). Nothing so makes a man a friend, as a gracious tongue, a mouth speaking good things, a soul free from self-elation, a contempt of vain-glory, a despising of honor. If we secure these things, we shall be able to become invincible to the snares of the Devil, and having with strictness accomplished the pursuit of virtue, to attain unto the good things promised to them that love Him, through the grace and mercy of our Lord Jesus Christ, with Whom to the Father and the Holy Ghost together be glory, dominion, honor, now and ever, world without end. Amen.
Source: Homilies on Acts (New Advent)