Read Joshua 8:8 Using Other Translations
And it shall be, when ye have taken the city, that ye shall set the city on fire: according to the commandment of the LORD shall ye do. See, I have commanded you.
And as soon as you have taken the city, you shall set the city on fire. You shall do according to the word of the LORD. See, I have commanded you."
Set the town on fire, as the LORD has commanded. You have your orders.”