to draw water: to lift or pull water up from a well, spring, or river
This is the ordinary, everyday word for getting water: lowering a jar into a well or spring and hauling it back up full. In the world of the Bible that work was usually done by women, and often more than once a day. The long betrothal scene at the well captures it perfectly, where Rebekah goes down to the spring, fills her jar, and draws again and again until the camels have all had their fill (Genesis 24).
Because fetching water was heavy, endless labor, the phrase "drawers of water" became shorthand for the lowest rank of servant. When the Gibeonites tricked Israel into a treaty, they were spared but bound to be woodcutters and water-carriers for the community (Joshua 9), a station later named in the same breath as the humblest members of the camp (Deuteronomy 29:11).
The same plain word carries some of Scripture's most vivid moments: David's warriors break through enemy lines just to draw him a drink from the well of Bethlehem (2 Samuel 23:16), Samuel's people draw water and pour it out before the LORD as an act of repentance (1 Samuel 7:6), and Isaiah promises that God's rescued people will "draw water with joy from the wells of salvation" (Isaiah 12:3). A close relative, דָּלָה, covers the same act of hauling water up.