Contradiction with Matthew 10:34
This verse states that Jesus came not to bring peace but a sword, contradicting the harmonious family setting where Joseph and Mary traveled together in Luke 2:43.
Matthew 10:34: Think not that I am come to send peace on earth: I came not to send peace, but a sword.
Contradiction with Matthew 19:29
This verse speaks of leaving family for Jesus' sake, while Luke 2:43 shows Jesus initially staying behind without mention of Him leaving for a divine purpose at that moment.
Matthew 19:29: And every one that hath forsaken houses, or brethren, or sisters, or father, or mother, or wife, or children, or lands, for my name's sake, shall receive an hundredfold, and shall inherit everlasting life.
Contradiction with John 7:5
Indicates His brothers didn’t believe in Him, conflicting with the assumed unity in Luke 2:43.
John 7:5: For neither did his brethren believe in him.
Contradiction with Mark 3:21
Speaks of Jesus' family thinking He was out of His mind, contrasting with the concern shown in Luke 2:43.
Mark 3:21: And when his friends heard [of it], they went out to lay hold on him: for they said, He is beside himself. [friends: or, kinsmen]
Contradiction with Luke 14:26
Jesus speaks about hating one's family for His sake, while in Luke 2:43, He appears part of a cooperative family unit.
Luke 14:26: If any [man] come to me, and hate not his father, and mother, and wife, and children, and brethren, and sisters, yea, and his own life also, he cannot be my disciple.