8. In fine, He calls those the children of Abraham whom He sees to be laborious in aiding and nourishing the poor. For when Zacchæus said, “Behold, the half of my goods I give to the poor; and if I have done any wrong to any man, I restore fourfold,” Jesus answered and said, “That salvation has this day come to this house, for that he also is a son of Abraham.”26 Luke xix. 8, 9. For if Abraham believed in God, and it was counted unto him for righteousness, certainly he who gives alms according to God’s precept believes in God, and he who has the truth of faith maintains the fear of God; moreover, he who maintains the fear of God considers God in showing mercy to the poor. For he labours thus because he believes—because he knows that what is foretold by God’s word is true, and that the Holy Scripture cannot lie—that unfruitful trees, that is, unproductive men, are cut off and cast into the fire, but that the merciful are called into the kingdom. He also, in another place, calls laborious and fruitful men faithful; but He denies faith to unfruitful and barren ones, saying, “If ye have not been faithful in the unrighteous mammon, who will commit to you that which is true? And if ye have not been faithful in that which is another man’s, who shall give you that which is your own?”27 Luke xvi. 11, 12.
VIII. Eos denique et Abrahae filios dicit quos in juvandis alendisque pauperibus operarios cernit. Nam, cum Zachaeus dixisset: Ecce dimidium ex substantia mea do egenis, et si cui quid fraudavi , quadruplum reddo, respondit Jesus et dixit quia salus hodie huic domui facta est, quoniam et hic filius est Abrahae (Luc. XIX, 8, 9). Nam, si Abraham credidit Deo et deputatum est ei ad justitiam, utique qui secundum praeceptum Dei eleemosynas facit, Deo credit, et qui habet fidei veritatem, servat Dei timorem; qui autem 0608B Dei timorem servat, in miserationibus pauperum Deum cogitat . Operatur enim ideo quia credit, quia scit vera esse quae praedicta sunt verbis Dei, nec Scripturam sanctam posse mentiri; arbores infructuosas, id est, steriles homines, excidi et in ignem mitti, misericordes autem ad regnum vocari. Qui et alio in loco operarios et fructuosos fideles appellat, infructuosis vero et sterilibus fidem derogat dicens: Si in injusto mammona fideles non fuistis, quod est verum quis credet vobis? Et si in alieno fideles non fuistis, quod est vestrum quis dabit vobis (Luc. XVI, 11)?