Contradiction with Exodus 20:13
Genesis 34:20 presents a peaceful negotiation, whereas Exodus 20:13 commands "Thou shalt not kill," highlighting the subsequent violent actions taken are contrary.
Exodus 20:13: Thou shalt not kill.
Contradiction with Matthew 5:44
The willingness to integrate with Shechem in Genesis 34:20 contrasts with Jesus' teaching to "love your enemies" as the real intent was the destruction of Shechem.
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 Romans 12:19
Genesis 34:20 involves deceit and premeditated vengeance, which contradicts Romans 12:19's advice to "avenge not yourselves" but leave it to God's wrath.
Romans 12:19: Dearly beloved, avenge not yourselves, but [rather] give place unto wrath: for it is written, Vengeance [is] mine; I will repay, saith the Lord.
Contradiction with 2 Corinthians 6:14
This verse warns against being "unequally yoked together with unbelievers," conflicting with the willingness to make alliances demonstrated in Genesis 34:20.
2 Corinthians 6:14: Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?