What does Joshua 7:14 mean?

In the morning, come forward tribe by tribe. The tribe the Lord picks will come forward clan by clan, then family by family, then man by man. The one caught with the forbidden things will be burned, along with everything he owns, because he broke the Lord’s agreement and did something outrageous in Israel. Joshua 7:14 - Modern Text Bible

(God lays out a process to identify the guilty person. The punishment is severe because the offense threatens the whole community’s relationship with God.)