1 Samuel 27:2

27:2 So David left and crossed over to King Achish son of Maoch of Gath accompanied by his six hundred men.

1 Samuel 30:9

30:9 So David went, accompanied by his six hundred men. When he came to the Wadi Besor, those who were in the rear stayed there. ¹ 

[30:9]  ¹ tn Heb “stood.” So also in v. 10.