King James Bible Dictionary

Trouble, a valley near Jericho, so called in consequence of the trouble which the sin of Achan caused Israel (Joshua 7:24, 26). The expression "valley of Achor" probably became proverbial for that which caused trouble, and when Isaiah (Isaiah 65:10) refers to it he uses it in this sense: "The valley of Achor, a place for herds to lie down in;" i.e., that which had been a source of calamity would become a source of blessing. Hosea also (Hosea 2:15) uses the expression in the same sense: "The valley of Achor for a door of hope;" i.e., trouble would be turned into joy, despair into hope. This valley has been identified with the Wady Kelt.

trouble

A valley near Jericho.
Joshua 7:26; Joshua 15:7; Isaiah 65:10; Hosea 2:15

A'CHOR, noun [Gr., sordes capitis.]

1. The scald head, a disease forming scaly eruptions, supposed to be a critical evacuation of acrimonious humors; a species of herpes.

2. In mythology, the God of flies, said to have been worshipped by the Cyreneans, to avoid being vexed by those insects.

(valley of trouble), the spot at which Achan was stoned. (Joshua 7:24,26) On the northern boundary of Judah, (Joshua 15:7) near Jericho.