from
Easton's 1897 Bible Dictionary
Achan
called also Achar, i.e., one who troubles (1 Chr. 2:7), in
commemoration of his crime, which brought upon him an awful
destruction (Josh. 7:1). On the occasion of the fall of Jericho,
he seized, contrary to the divine command, an ingot of gold, a
quantity of silver, and a costly Babylonish garment, which he
hid in his tent. Joshua was convinced that the defeat which the
Israelites afterwards sustained before Ai was a proof of the
divine displeasure on account of some crime, and he at once
adopted means by the use of the lot for discovering the
criminal. It was then found that Achan was guilty, and he was
stoned to death in the valley of Achor. He and all that belonged
to him were then consumed by fire, and a heap of stones was
raised over the ashes.