Contradiction with Proverbs 3:5
Luke 2:50 shows a lack of understanding by Mary and Joseph, whereas Proverbs urges full trust and reliance on God's wisdom, which implies understanding.
Proverbs 3:5: Trust in the LORD with all thine heart; and lean not unto thine own understanding.
Contradiction with James 1:5
Luke 2:50 demonstrates Mary and Joseph's lack of wisdom, while James states that those who lack wisdom should ask God, who gives generously to all.
James 1:5: If any of you lack wisdom, let him ask of God, that giveth to all [men] liberally, and upbraideth not; and it shall be given him.
Contradiction with John 16:13
This verse suggests believers will be guided into all truth by the Spirit, yet Luke 2:50 shows that Mary and Joseph did not understand Jesus' words.
John 16:13: Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, [that] shall he speak: and he will shew you things to come.
Contradiction with Matthew 13:14-15
In this passage, Jesus speaks of people who hear but do not understand, a situation paralleled by Mary and Joseph's reaction in Luke 2:50.
Matthew 13:14-15: And in them is fulfilled the prophecy of Esaias, which saith, By hearing ye shall hear, and shall not understand; and seeing ye shall see, and shall not perceive:
Contradiction with Isaiah 55:8-9
This emphasizes that God's thoughts and ways are higher than human understanding, not necessarily a contradiction but an explanation for the lack of understanding shown in Luke 2:50, yet it highlights the difference in comprehension.
Isaiah 55:8-9: For my thoughts [are] not your thoughts, neither [are] your ways my ways, saith the LORD.