Contradiction with Ecclesiastes 8:11
While Proverbs 16:15 suggests a king's favor brings life, Ecclesiastes 8:11 notes that delay in executing judgment encourages wrongdoing.
Ecclesiastes 8:11: Because sentence against an evil work is not executed speedily, therefore the heart of the sons of men is fully set in them to do evil.
Contradiction with Matthew 10:28
Proverbs 16:15 speaks of the favorable impact of a king's favor, but Matthew 10:28 warns to fear not human power but God, who has ultimate authority.
Matthew 10:28: And fear not them which kill the body, but are not able to kill the soul: but rather fear him which is able to destroy both soul and body in hell.
Contradiction with Acts 5:29
Proverbs emphasizes the life-giving aspect of a king's favor, yet Acts asserts obedience to God over human authority, suggesting limits to human favor.
Acts 5:29: Then Peter and the [other] apostles answered and said, We ought to obey God rather than men.
Contradiction with James 4:4
Proverbs 16:15 presents a positive view of royal favor, whereas James warns that friendship with the world (seeking human favor) makes one an enemy of God.
James 4:4: Ye adulterers and adulteresses, know ye not that the friendship of the world is enmity with God? whosoever therefore will be a friend of the world is the enemy of God.
Contradiction with John 19:10-11
In contrast to the power of royal favor in Proverbs 16:15, Jesus in John suggests that human authority is given from above and not inherently powerful.
John 19:10-11: Then saith Pilate unto him, Speakest thou not unto me? knowest thou not that I have power to crucify thee, and have power to release thee?