Contradiction with Matthew 5:44
Jesus teaches to love your enemies, which contrasts with Paul's initial mission of persecution in Acts 26:12.
Matthew 5:44: But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you;
Contradiction with Exodus 20:13
This commandment forbids murder, which contrasts with Saul's intent to persecute and kill Christians as implied in Acts 26:12.
Exodus 20:13: Thou shalt not kill.
Contradiction with John 13:34
Jesus commands His followers to love one another, contradicting Saul's persecution of Christians in Acts 26:12.
John 13:34: A new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another.