פירוש על יהושע 7:20

And Ochan answered. He saw the men of [the tribe of] Yehudah assembling for war,²⁰They were prepared to go to war to protect Ochan, who was one of their tribe. and he said, “It is better that I alone should die rather than have many thousands of Bnei Yisroel killed.”²¹There would have been a civil war between the tribe of Yehudah and the other tribes. This would have caused thousands of casualties.

And I have done the following. (Lit. and this and this have I done)²²The implication was that this was not the only time he had sinned regarding sacred things. I also sinned regarding other sacred things, during the days of Moshe, as it is said, ‘I will sanctify their cities.’²³Bamidbar 21:2. This occurred when the Bnei Yisroel took revenge against Midian and declared that some of the booty be considered sacred.