Contradiction with 2 Samuel 1:20
This verse instructs not to publish the news, contradicting Ahimaaz's eagerness to deliver news in 2 Samuel 18:20.
2 Samuel 1:20: Tell [it] not in Gath, publish [it] not in the streets of Askelon; lest the daughters of the Philistines rejoice, lest the daughters of the uncircumcised triumph.
Contradiction with Proverbs 11:13
Speaks against revealing secrets, contradicting Ahimaaz's wish to bear news in 2 Samuel 18:20.
Proverbs 11:13: A talebearer revealeth secrets: but he that is of a faithful spirit concealeth the matter. [A talebearer: Heb. He that walketh, being a talebearer]
Contradiction with Proverbs 25:9
Advises keeping a matter private, opposing Ahimaaz's desire to spread news in 2 Samuel 18:20.
Proverbs 25:9: Debate thy cause with thy neighbour [himself]; and discover not a secret to another: [a secret...: or, the secret of]
Contradiction with Ecclesiastes 3:7
Suggests there is a time to keep silence, which contrasts with Ahimaaz wanting to speak in 2 Samuel 18:20.
Ecclesiastes 3:7: A time to rend, and a time to sew; a time to keep silence, and a time to speak;