1 Samuel 30:8-10

New Revised Standard Version, Anglicised

⁸ David inquired of the Lord, ‘Shall I pursue this band? Shall I overtake them?’ He answered him, ‘Pursue; for you shall surely overtake and shall surely rescue.’ ⁹ So David set out, he and the six hundred men who were with him. They came to the Wadi Besor, where those stayed who were left behind. ¹⁰ But David went on with the pursuit, he and four hundred men; two hundred stayed behind, too exhausted to cross the Wadi Besor.