Again, Jesse made seven of his sons to pass before Samuel. And Samuel said unto Jesse, The LORD has not chosen these.
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George Leo Haydock
Seven. David was absent. Isai had eight sons, chap. xvii. 12. Yet only seven are mentioned, 1 Paralipomenon ii. 13. Perhaps one of those whom he produced on this occasion, might be a grandson, or one is omitted in Chronicles . (Calmet)