Joshua 7:1
“But the children of Israel committed a trespass in the accursed thing: for Achan, the son of Carmi, the son of Zabdi, the son of Zerah, of the tribe of Judah, took of the accursed thing: and the anger of the Lord was kindled against the children of Israel.”
But the children of Israel committed a trespass in the accursed thing: for Achan, the son of Carmi, the son of Zabdi, the son of Zerah, of the tribe of Judah, took of the accursed thing: and the anger of the Lord was kindled against the children of Israel.
And Joshua sent men from Jericho to Ai, which is beside Beth–aven, on the east side of Beth–el, and spake unto them, saying, Go up and view the country. And the men went up and viewed Ai.
And they returned to Joshua, and said unto him, Let not all the people go up; but let about two or three thousand men go up and smite Ai; and make not all the people to labour thither; for they are but few.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“Did not Achan the son of Zerah commit a trespass in the accursed thing, and wrath fell on all the congregation of Israel? and that man perished not alone in his iniquity.”
“The blessing of the Lord, it maketh rich, and he addeth no sorrow with it.”
“Wisdom is better than weapons of war: but one sinner destroyeth much good.”
“And the sons of Zerah; Zimri, and Ethan, and Heman, and Calcol, and Dara: five of them in all.”
“But that ye must turn away this day from following the Lord? and it will be, seeing ye rebel to day against the Lord, that to morrow he will be wroth with the whole congregation of Israel.”