Isaiah 33:15

Taking bribes is a violation of the truth. Therefore, it is said of the just man: "He who cleanses his hands of every gift will live on the heights."

There are some who indeed do not receive rewards of money from ordination, yet bestow sacred orders for human favor, and from that very generosity seek only the recompense of praise. These certainly do not bestow freely what was freely received, because from the service of holiness they have rendered, they seek the coin of favor. Hence the prophet spoke well when describing the just man, saying: Who shakes his hands free from every gift. For he does not say: Who shakes his hands from a gift, but added from every, because one thing is a gift from service, another a gift from the hand, another a gift from the tongue. A gift from service is deference unduly rendered, a gift from the hand is money, a gift from the tongue is favor. Therefore he who bestows sacred orders shakes his hands free from every gift when in divine matters he seeks not only no money, but also no human favor.

We must bear in mind too that there are three ways in which deceit itself is practised, in that, surely, the object aimed at in it is either the secret interest of our fellow creatures' feelings, or the breath of applause, or some outward advantage; contrary to which it is rightly said of the righteous man by the prophet, "Blessed is he that shaketh his hands clear of every favour." For as deceit does not consist only in the receiving of money; so, no doubt, a favour is not confined to one thing, but there are three ways of receiving favours after which deceit goeth in haste. For a favour from the heart, is interest solicited in the opinion, a favour from the mouth is glory from applause, a favour from the head a reward by gift. Now every righteous man 'shaketh his hands clear of every favour,' in that in whatever he does aright, he neither aims to win vainglory from the affections of his fellow creatures, nor applause from their lips, nor a gift from their hands. And so he alone is not guilty of deceit in doing God's work, who while he is energetic in studying right conduct, neither pants after the rewards of earthly substance, nor after words of applause, nor after favour in man's judgment. Therefore because our very good actions themselves cannot escape the sword of ambushed sin, unless they be guarded every day by anxious fear, it is rightly said in this place by the holy man, I was afraid of all my works.