2 Samuel 8:18

8:18 Benaiah son of Jehoida supervised ¹  the Kerithites and Pelethites; and David’s sons were priests. ² 

2 Samuel 8:2

8:2 He defeated the Moabites. He made them lie on the ground and then used a rope to measure them off. He put two-thirds of them to death and spared the other third. ³  The Moabites became David’s subjects and brought tribute. ⁴ 

2 Samuel 11:22

11:22 So the messenger departed. When he arrived, he informed David of all the news that Joab had sent with him.

[8:18]  ¹ tc The translation follows the Syriac Peshitta, Targum, and Vulgate in reading “over,” rather than the simple conjunction that appears in MT. See also the parallel passage in 1 Chr 18:17.

[8:18]  ² sn That David’s sons could have been priests, in light of the fact that they were not of the priestly lineage, is strange. One must assume either (1) that the word “priest” (כֹּהֵן, kohen) during this period of time could be used in a broader sense of “chief ruler” (KJV); “chief minister” (ASV, NASB), or “royal adviser” (NIV), perhaps based on the parallel passage in 1 Chr 18:17 which has “the king’s leading officials”, or (2) that in David’s day members of the king’s family could function as a special category of “priests” (cf. NLT “priestly leaders”). The latter option seems to be the more straightforward way of understanding the word in 2 Sam 8:18.

[8:2]  ³ tn Heb “and he measured [with] two [lengths] of rope to put to death and [with] the fullness of the rope to keep alive.”

[8:2]  ⁴ tn Heb “and the Moabites were servants of David, carriers of tribute.”