Joshua 6:18
18 But you, keep yourselves from the things devoted to destruction, lest when you have devoted them you take any of the devoted things and make the camp of Israel pa thing for destruction and qbring trouble upon it.
Joshua 7:1
Israel Defeated at Ai
1 But the people of Israel broke faith in regard to the devoted things, for aAchan the son of Carmi, son of Zabdi, son of Zerah, of the tribe of Judah, took some of the devoted things. And the anger of the Lord burned against the people of Israel.