Kings I 30:13

13 And David said to him, Whose art thou? and whence art thou? and the young man the Egyptian said, I am the servant of an Amalekite; and my master left me, because I was taken ill three days ago.

Kings I 30:13 In-Context

11 And they find an Egyptian in the field, and they take him, and bring him to David; and they gave him bread and he ate, and they caused him to drink water.
12 And they gave him a piece of a cake of figs, and he ate, and his spirit was restored in him; for he had not eaten bread, and had not drunk water three days and three nights.
13 And David said to him, Whose art thou? and whence art thou? and the young man the Egyptian said, I am the servant of an Amalekite; and my master left me, because I was taken ill three days ago.
14 And we made an incursion on the south of the Chelethite, and on the parts of Judea, and on the south of Chelub, and we burnt Sekelac with fire.
15 And David said to him, Wilt thou bring me down to this troop? And he said, Swear now to me by God, that thou wilt not kill me, and that thou wilt not deliver me into the hands of my master, and I will bring thee down upon this troop.

The Brenton translation of the Septuagint is in the public domain.