Contradiction with 1 Samuel 31:4-5
These verses describe Saul's death by falling on his sword, which contradicts the account in 2 Samuel 1:3 where the Amalekite claims Saul asked him to kill him.
1 Samuel 31:4-5: Then said Saul unto his armourbearer, Draw thy sword, and thrust me through therewith; lest these uncircumcised come and thrust me through, and abuse me. But his armourbearer would not; for he was sore afraid. Therefore Saul took a sword, and fell upon it. [abuse...: or, mock me]
Contradiction with 2 Samuel 1:6-10
These verses contain the Amalekite's account, inconsistent with 1 Samuel 31:4-5 where Saul takes his own life.
2 Samuel 1:6-10: And the young man that told him said, As I happened by chance upon mount Gilboa, behold, Saul leaned upon his spear; and, lo, the chariots and horsemen followed hard after him.
Contradiction with 1 Chronicles 10:4-5
These verses also describe Saul's death by his own hand, conflicting with the Amalekite's testimony in 2 Samuel 1:3.
1 Chronicles 10:4-5: Then said Saul to his armourbearer, Draw thy sword, and thrust me through therewith; lest these uncircumcised come and abuse me. But his armourbearer would not; for he was sore afraid. So Saul took a sword, and fell upon it. [abuse me: or, mock me]