14 Knowing all these things then, make the first advance to a brother; lay hold of him before he has entirely shrunk away from you; and should it be necessary, to run through all the city on the same day; should it be necessary to go beyond the walls, or to take a long journey; still leaving all other things that may be in hand, attend only to this one work of reconciling your brother. For if the work be laborious, reflect that it is for God's sake you undergo all this, and you shall receive sufficient consolation.
Stir up your soul also when it is shrinking, and backward, and bashful, and ashamed, by perpetually harping on this theme and saying, Why are you delaying? Why are you shrinking and holding back? Our concern is not for money, nor for any other of these fleeting things, but for our salvation. God bids us do all these things, and all things should be secondary to His commands. This matter is a sort of spiritual merchandise. Let us not neglect it, let us not be slothful. Let our enemy too understand that we have taken much pains, in order to do what is well-pleasing unto God.
And though he may again insult, or strike us, or do any other such thing of a still more grievous kind, let us sustain all things courageously, since we are not so much benefitting him thereby, as ourselves. Of all good works, this shall most especially befriend us on That Day. We have sinned and offended in many and great matters, and have provoked our Lord. Through His lovingkindness He has given us this way of reconciliation. Let us, then, not betray this good treasure. For had He not power to charge us simply to make reconciliation, and not have any reward assigned to it?
For whom has He to gainsay or rectify His appointment? Nevertheless, through His great lovingkindness, He has promised us a large and unspeakable reward, and one which we must be especially desirous to obtain, the pardon of our sins; thus also making this our obedience more easy of performance.
Source: Homilies on the Statues (New Advent)