Contradiction with 1 Samuel 16:10-11
1 Chronicles 2:15 lists David as the seventh son, but in 1 Samuel 16:10-11, David is presented as the eighth son of Jesse.
1 Samuel 16:10-11: Again, Jesse made seven of his sons to pass before Samuel. And Samuel said unto Jesse, The LORD hath not chosen these.
Contradiction with 1 Samuel 17:12-14
States David was the youngest of eight sons, contradicting 1 Chronicles 2:15 which presents David as the seventh son.
1 Samuel 17:12-14: 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.