2 Samuel 17:17

Jonathan and Ahimaaz Hushai had evidently communicated David's plan to Zadok and Abiathar, and commissioned the young men to be in waiting at a convenient place.

En-rogel That is, "The Fuller's Fountain," probably the modern "Fountain of the Virgin," in the valley of the Kidron, just outside the city on the south-east. It was close to "the stone of Zoheleth" (1 Kings 1:9), which has been identified with the cliff Zahweileh, on which the modern village of Siloam stands. Others however suppose En-rogel to be the deep and ancient well known as "Job's Well," near the junction of the valleys of the Kidron and Hinnom. En-rogel was a land-mark on the boundary between Judah and Benjamin (Joshua 15:7; Joshua 18:16).

they might not be seen For it was notorious that the high-priests were on David's side. They knew that their movements would be watched, as the next verse shews was the case.

a wench The maid-servant: the definite article probably denotes a particular servant belonging to the household of one of the high-priests. She could go to the fountain for water without exciting suspicion. Wench, found here only in the E. V., means a girl, usually one of low birth.