Albert Barnes' Notes on the Whole Bible - 1 Chronicles 11:6-8
The narrative here given fills out a manifest defect in 2 Samuel 5:8 where something has evidently dropped out of the text.The prowess of Joab on this occasion, and the part which he took in the building of the city of David 1 Chronicles 11:8, are known to us only from this passage of Chronicles. read more
The Pulpit Commentary - 1 Chronicles 11:23
Five cubits high . This height is not given in the parallel passage; it means seven feet six inches. A spear like a weaver's beam (so 1 Samuel 17:7 ; 2 Samuel 21:19 ). read more