'Wadi' in the Bible

The LORD told David, "Pursue them! You will definitely overtake them and rescue the captives." So David and 600 men who were with him set out. They came to the Wadi Besor where those who were left behind stayed.

David and 400 men continued the pursuit, while the 200 men who were too exhausted to cross over the Wadi Besor remained there.

David came to the 200 men who were too exhausted to follow him and who had been left at the Wadi Besor. They came out to meet David and the people who were with him. As David approached the people, he asked them how they were doing.