The Knights Abisai, Sibbechai and Benaja Bring King David Water are a pair of side panels from a large polyptych altarpiece painted c. 1435 by the German-born artist Konrad Witz.
[1][2] The two panels were originally the left and right panels in the lower row on the inside of the right wing of the Salvation Mirror altar in St Leonard's collegiate church in Basel.
A Salvation Mirror altar was so called because it depicted scenes from the Speculum Humanae Salvationis (or Mirror of Human Salvation), an illustrated book of popular theology written in Latin in the Middle Ages.
The pictures jointly portray a scene from a story in the Old Testament (2 Samuel 23:13–17).
Three of his best warriors (Abisai, Sibbechai and Benaja) stole through the Philistine positions, drew water from the well and carried it back to the king.