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1 In that day Tobit remembered the money which he had committed to Gabael in Rages of Media, 2 And said with himself, I have wished for death; wherefore do I not call for my son Tobias that I may signify to him of the money before I die? 3 And when he had called him, he said, My son, when I am dead, bury me; and despise not thy mother, but honour her all the days of thy life, and do that which shall please her, and grieve her not. 4 Remember, my son, that she saw many dangers for thee, when thou wast in her womb: and when she is dead, bury her by me in one grave. 5 My son, be mindful of the Lord our God all thy days, and let not thy will be set to sin, or to transgress his commandments: do uprightly all thy life long, and follow not the ways of unrighteousness. 6 For if thou deal truly, thy doings shall prosperously succeed to thee, and to all them that live justly. 7 Give alms of thy substance; and when thou givest alms, let not thine eye be envious, neither turn thy face from any poor, and the face of God shall not be turned away from thee. 8 If thou hast abundance give alms accordingly: if thou have but a little, be not afraid to give according to that little: 9 For thou layest up a good treasure for thyself against the day of necessity. 10 Because that alms do deliver from death, and suffereth not to come into darkness. 11 For alms is a good gift unto all that give it in the sight of the most High. 12 Beware of all whoredom, my son, and chiefly take a wife of the seed of thy fathers, and take not a strange woman to wife, which is not of thy father's tribe: for we are the children of the prophets, Noe, Abraham, Isaac, and Jacob: remember, my son, that our fathers from the beginning, even that they all married wives of their own kindred, and were blessed in their children, and their seed shall inherit the land. 13 Now therefore, my son, love thy brethren, and despise not in thy heart thy brethren, the sons and daughters of thy people, in not taking a wife of them: for in pride is destruction and much trouble, and in lewdness is decay and great want: for lewdness is the mother of famine. 14 Let not the wages of any man, which hath wrought for thee, tarry with thee, but give him it out of hand: for if thou serve God, he will also repay thee: be circumspect my son, in all things thou doest, and be wise in all thy conversation. 15 Do that to no man which thou hatest: drink not wine to make thee drunken: neither let drunkenness go with thee in thy journey. 16 Give of thy bread to the hungry, and of thy garments to them that are naked; and according to thine abundance give alms: and let not thine eye be envious, when thou givest alms. 17 Pour out thy bread on the burial of the just, but give nothing to the wicked. 18 Ask counsel of all that are wise, and despise not any counsel that is profitable. 19 Bless the Lord thy God alway, and desire of him that thy ways may be directed, and that all thy paths and counsels may prosper: for every nation hath not counsel; but the Lord himself giveth all good things, and he humbleth whom he will, as he will; now therefore, my son, remember my commandments, neither let them be put out of thy mind. 20 And now I signify this to they that I committed ten talents to Gabael the son of Gabrias at Rages in Media. 21 And fear not, my son, that we are made poor: for thou hast much wealth, if thou fear God, and depart from all sin, and do that which is pleasing in his sight.
[AD 430] Augustine of Hippo on Tobit 4:10
“Light has arisen for the just person.” What light is there for a just man or woman? A certain light that does not rise for the unjust, different from the light that dawns on good and bad alike. Another light rises on a righteous person, that light of which the unrighteous will confess at the end that it never dawned for them: “No doubt of it, we strayed from the path of truth. On us the light of righteousness did not shine, nor did the sun rise for us.” Reveling in the common light, they lay in darkness of heart. What did it profit to them to see daylight with their eyes, if their minds could not see the light beyond? Tobit was blind, yet he taught his son the way of God. You know this is true, because Tobit advised his son, “Give alms, my son, for almsdeeds save you from departing into darkness,” yet the speaker was in darkness himself. Do you see from this that it is a different light that rises for a just person and good cheer for those of straightforward heart4?

[AD 430] Augustine of Hippo on Tobit 4:15
“You loved malice above kindness.” Do you want proof that an evil person can see both, malice and kindness, yet chooses malice and turns away from kindness? Here it is. Why do such people complain when suffering unjustly? Why do they, in that situation, exaggerate the injustice as much as possible while commending kindness and denounce the offender who in treating them so badly has put malice above kindness? Let such people be their own criterion; let them judge their own behavior by their experience. If they will only obey Scripture’s injunction, “You shall love your neighbor as yourself,” and “Whatever good you want people to do for you, do the same yourselves for them,” they will have within themselves evidence that they must not treat others as they would not wish to be treated themselves.

[AD 430] Augustine of Hippo on Tobit 4:17
It is obvious that a banquet does not benefit the dead, and that it is a custom of the pagans, and that it does not flow from the channel of justice derived from our ancestors the patriarchs; we read about their funerals being celebrated; we do not read of funeral sacrifices being offered for them. This can also be observed in the customs of the Jews, for while they have not inherited from their ancestors the fruit of virtue, still they have retained the ancient customs in a number of their celebrations and ceremonies. And as for the objection some people bring forth from the Scriptures: “Break your bread and pour out your wine on the tombs of the just but do not hand it over to the unjust,” this is not the occasion, indeed, to expatiate on it; but still I will say that the faithful can understand what is being said. It is well known, after all, to the faithful how the faithful do these things out of a religious respect for their dear departed; and that such rites are not to be granted to the unjust, that is, to unbelievers, because “the just person lives by faith.”