Deuteronomy Chapter 20, Verse 10

10: When thou comest nigh unto a city to fight against it, then proclaim peace unto it.- edit KJV text
10: If at any time thou come to fight against a city, thou shalt first offer it peace.— edit Douay text
10: And if thou shalt draw nigh to a city to overcome them by war, then call them out peaceably.— edit LXX text