Now the Philistines gathered together their armies to battle; and they were gathered together at Socoh, which belongs to Judah, and encamped between Socoh and Azekah, in Ephesdammim.
"1 Samuel 17:12-31 are omitted in the Vatican copy of the LXX,"[9] but the reason for this omission was solely due to the failure of translators to appreciate the proleptic nature of the preceding chapter.  As Willis pointed out, "The events recorded here took place before David entered Saul's service as an armor-bearer, but after he had been brought to Saul's court to play the lyre, as indicated in  1 Samuel 17:15."[10]