This and the following verses down to the end of 1 Samuel 17:31 are omitted in the Vatican copy of the Septuagint, as are 1 Samuel 17:55-58. The object of the omission was doubtless to avoid the apparent inconsistency with regard to Saul’s acquaintance with David (see 1 Samuel 16:21 note).
Related Commentaries of 1 Samuel 17:12
1 Samuel 17:12
12 Now David was the son of that Ephrathite of Bethlehemjudah, whose name was Jesse; and he had eight sons: and the man went among men for an old man in the days of Saul.