16 This also let us consider not only with respect to an oath, but to every thing. And when we are about to do any good action for God's sake, and it is found to bring loss with it, let us look not merely at the loss connected with the matter, but at the gain which we shall reap by doing it for God. That is to say, Hath any one insulted you? Bear it nobly! And you will do so, if you think not of the insult merely, but of the dignity of Him who commands you to bear it, and you bear it meekly.
Have you given an alms? Think not of the outlay, but of the produce which arises from the outlay. Have you been mulcted of money? Give thanks, and regard not only the pain which is the result of the loss, but the gain which comes of thanksgiving. If we thus regulate ourselves, none of those heavy events which may befal us will give us pain; but from those things which may seem to be grievous, we shall be even gainers, and loss will be sweeter and more desired than wealth, pain than pleasure, and mirth and insult than honour.
Thus all things adverse will turn to our gain. And here we shall enjoy much tranquillity, and there we shall attain the kingdom of heaven; which God grant that we may all be deemed worthy to obtain, by the grace and lovingkindness of our Lord Jesus Christ, through Whom and with Whom, to the Father with the Holy Spirit, be glory, dominion, and honour, now and ever, and world without end. Amen.
Source: Homilies on the Statues (New Advent)