Deuteronomy 20:6-16

6 And what man [is he] that hath planted a vineyard, and hath not [yet] eaten of it? let him [also] go and return to his house, lest he should die in the battle, and another man should eat of it.
7 And what man [is there] that hath betrothed a wife, and hath not taken her? let him go and return to his house, lest he should die in battle, and another man should take her.
8 And the officers shall speak further to the people, and they shall say, What man [is there that is] fearful and faint-hearted? let him go and return to his house, lest his brethren's heart should faint as well as his heart.
9 And it shall be, when the officers have made an end of speaking to the people, that they shall make captains of the armies to lead the people.
10 When thou comest nigh to a city to fight against it, then proclaim peace to it.
11 And it shall be, if it shall make thee answer of peace, and open to thee, then it shall be, [that] all the people [that are] found therein, shall be tributaries to thee, and they shall serve thee.
12 And if it will make no peace with thee, but will make war against thee, then thou shalt besiege it:
13 And when the LORD thy God hath delivered it into thy hands, thou shalt smite every male of it with the edge of the sword:
14 But the women, and the little ones, and the cattle, and all that is in the city, [even] all the spoil of it, shalt thou take to thyself: and thou shalt eat the spoil of thy enemies, which the LORD thy God hath given thee.
15 Thus shalt thou do to all the cities [which are] very distant from thee, which [are] not of the cities of these nations.
16 But of the cities of these people which the LORD thy God doth give thee [for] an inheritance, thou shalt save alive nothing that breatheth:
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