1 He that is wounded in the stones, or hath his privy member cut off, shall not enter into the congregation of the LORD. 2 A bastard shall not enter into the congregation of the LORD; even to his tenth generation shall he not enter into the congregation of the LORD. 3 An Ammonite or Moabite shall not enter into the congregation of the LORD; even to their tenth generation shall they not enter into the congregation of the LORD for ever: 4 Because they met you not with bread and with water in the way, when ye came forth out of Egypt; and because they hired against thee Balaam the son of Beor of Pethor of Mesopotamia, to curse thee. 5 Nevertheless the LORD thy God would not hearken unto Balaam; but the LORD thy God turned the curse into a blessing unto thee, because the LORD thy God loved thee. 6 Thou shalt not seek their peace nor their prosperity all thy days for ever. 7 Thou shalt not abhor an Edomite; for he is thy brother: thou shalt not abhor an Egyptian; because thou wast a stranger in his land. 8 The children that are begotten of them shall enter into the congregation of the LORD in their third generation. 9 When the host goeth forth against thine enemies, then keep thee from every wicked thing. 10 If there be among you any man, that is not clean by reason of uncleanness that chanceth him by night, then shall he go abroad out of the camp, he shall not come within the camp: 11 But it shall be, when evening cometh on, he shall wash himself with water: and when the sun is down, he shall come into the camp again. 12 Thou shalt have a place also without the camp, whither thou shalt go forth abroad: 13 And thou shalt have a paddle upon thy weapon; and it shall be, when thou wilt ease thyself abroad, thou shalt dig therewith, and shalt turn back and cover that which cometh from thee: 14 For the LORD thy God walketh in the midst of thy camp, to deliver thee, and to give up thine enemies before thee; therefore shall thy camp be holy: that he see no unclean thing in thee, and turn away from thee. 15 Thou shalt not deliver unto his master the servant which is escaped from his master unto thee: 16 He shall dwell with thee, even among you, in that place which he shall choose in one of thy gates, where it liketh him best: thou shalt not oppress him. 17 There shall be no whore of the daughters of Israel, nor a sodomite of the sons of Israel. 18 Thou shalt not bring the hire of a whore, or the price of a dog, into the house of the LORD thy God for any vow: for even both these are abomination unto the LORD thy God. 19 Thou shalt not lend upon usury to thy brother; usury of money, usury of victuals, usury of any thing that is lent upon usury: 20 Unto a stranger thou mayest lend upon usury; but unto thy brother thou shalt not lend upon usury: that the LORD thy God may bless thee in all that thou settest thine hand to in the land whither thou goest to possess it. 21 When thou shalt vow a vow unto the LORD thy God, thou shalt not slack to pay it: for the LORD thy God will surely require it of thee; and it would be sin in thee. 22 But if thou shalt forbear to vow, it shall be no sin in thee. 23 That which is gone out of thy lips thou shalt keep and perform; even a freewill offering, according as thou hast vowed unto the LORD thy God, which thou hast promised with thy mouth. 24 When thou comest into thy neighbour's vineyard, then thou mayest eat grapes thy fill at thine own pleasure; but thou shalt not put any in thy vessel. 25 When thou comest into the standing corn of thy neighbour, then thou mayest pluck the ears with thine hand; but thou shalt not move a sickle unto thy neighbour's standing corn.
[AD 1781] Richard Challoner on Deuteronomy 23:1
Eunuch: By these are meant, in the spiritual sense, such as are barren in good works. Ibid.
[AD 1781] Richard Challoner on Deuteronomy 23:1
Into the church: That is, into the assembly or congregation of Israel, so as to have the privilege of an Israelite, or to be capable of any place or office among the people of God.
[AD 215] Clement of Alexandria on Deuteronomy 23:7
At any rate [Scripture] says openly, “You shall not loathe Egyptians, since you lived as strangers in Egypt.” By Egyptian it means “Gentile,” in fact anyone from anywhere in the world. It is further forbidden to think of enemies as enemies, even if they are presently besieging your walls in the effort to capture your city, until you have sent them an envoy to invite them to peace.

[AD 1781] Richard Challoner on Deuteronomy 23:14
No uncleanness: This caution against suffering any filth in the camp, was to teach them to fly the filth of sin, which driveth God away from the soul.
[AD 397] Ambrose of Milan on Deuteronomy 23:19
[Scripture] orders money to be returned without usury. It is a mark of kindly feeling to help one who has nothing. It is a sign of a hard nature to extort more than one has given. If one has need of your assistance because he has not enough of his own wherewith to repay a debt, is it not a wicked thing to demand under the guise of kindly feeling a larger sum from him who has not the means to pay off a lesser amount?

[AD 1781] Richard Challoner on Deuteronomy 23:20
To the stranger: This was a dispensation granted by God to his people, who being the Lord of all things, can give a right and title to one upon the goods of another. Otherwise the scripture everywhere condemns usury, as contrary to the law of God, and a crying sin. See Ex. 22. 25; Lev. 25. 36, 37; 2 Esd. 5. 7; Ps. 14. 5; Ezech. 18. 8, 13, etc.
[AD 397] Ambrose of Milan on Deuteronomy 23:21
A vow is a request for a benefit from God with a promise to give something in return. Hence, when you have obtained what you sought, it would be an ungrateful act to delay what you have promised.

[AD 430] Augustine of Hippo on Deuteronomy 23:24
Let all the servants of God grant [the monks] permission to enter their fields whenever they wish and to depart when well fed and satisfied. This is according to the law given to the people of Israel that no one should arrest a thief in his fields unless he wished to take something away with him. Rather, the owner of the field should permit him who had touched nothing but what he had eaten to depart free and unpunished.