For though he had eight sons, 1 Samuel 16:10, one of them either died presently after that time, or is neglected for some reason now unknown, as others are. See Poole on "Matthew 1:8", See Poole on "Matthew 1:9".
Related Commentaries of 1 Chronicles 2:15
1 Chronicles 2:15
15 Ozem the sixth, David the seventh: