How am I distressed, think you, when I call to mind that on the festival days the multitudes assembled resemble the broad expanse of the sea, but now not even the smallest part of that multitude is gathered together here? Where are they now who oppress us with their presence on the feast days? I look for them, and am grieved on their account when I mark what a multitude are perishing of those who are in the way of salvation, how large a loss of brethren I sustain, how few are reached by the things which concern salvation, and how the greater part of the body of the Church is like a dead and motionless carcass.
"And what concern is that to us?" you say. The greatest possible concern if you pay no attention to your brethren, if you do not exhort and advise, if you put no constraint on them, and do not forcibly drag them hither, and lead them away out of their deep indolence. For that one ought not to be useful to himself alone, but also to many others, Christ declared plainly, when He called us salt, and leaven, and light: for these things are useful and profitable to others.
For a lamp does not shine for itself, but for those who are sitting in darkness: and you are a lamp not that you may enjoy the light by yourself, but that you may bring back yonder man who has gone astray. For what profit is a lamp if it does not give light to him who sits in darkness? And what profit is a Christian when he benefits no one, neither leads any one back to virtue?
Again salt is not an astringent to itself but braces up those parts of the body which have decayed, and prevents them from falling to pieces and perishing. Even so do thou, since God has appointed you to be spiritual salt, bind and brace up the decayed members, that is the indolent and sordid brethren, and having rescued them from their indolence as from some form of corruption, unite them to the rest of the body of the Church.
And this is the reason why He called you leaven: for leaven also does not leaven itself, but, little though it is, it affects the whole lump however big it may be. So also do ye: although you are few in number, yet be ye many and powerful in faith, and in zeal towards God. As then the leaven is not weak on account of its littleness, but prevails owing to its inherent heat, and the force of its natural quality, so ye also will be able to bring back a far larger number than yourselves, if you will, to the same degree of zeal as your own.