Contradiction with Romans 12:19
While Isaiah 13:3 speaks of God preparing his forces for destruction, Romans 12:19 instructs believers not to seek vengeance but leave room for 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 Matthew 5:44
Isaiah 13:3 involves commanded destruction, whereas Matthew 5:44 tells followers to love their enemies and pray for those who persecute them.
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 James 1:20
Isaiah 13:3 involves executing God's wrath, but James 1:20 states that human anger does not produce the righteousness that God desires.
James 1:20: For the wrath of man worketh not the righteousness of God.
Contradiction with 1 John 4:8
In contrast to the destructive message in Isaiah 13:3, 1 John 4:8 emphasizes that God is love.
1 John 4:8: He that loveth not knoweth not God; for God is love.
Contradiction with Ezekiel 18:32
Isaiah 13:3 may suggest a determined destruction, while Ezekiel 18:32 states God takes no pleasure in the death of anyone, advocating repentance and life.
Ezekiel 18:32: For I have no pleasure in the death of him that dieth, saith the Lord GOD: wherefore turn [yourselves], and live ye. [yourselves: or, others]
Contradiction with Matthew 26:52
Isaiah 13:3 might imply an endorsement of violence for divine purposes, but Matthew 26:52 cautions that those who take up the sword will perish by the sword.
Matthew 26:52: Thinkest thou that I cannot now pray to my Father, and he shall presently give me more than twelve legions of angels?
Paradox #1
Isaiah 13:3 mentions God calling upon His "consecrated ones" to execute His anger. The moral conflict here could be that a loving and just God instructing people to carry out acts of destruction or punishment seems to contradict the ideals of mercy and forgiveness often emphasized in religious teachings. Some might see this as inconsistent with the portrayal of a benevolent deity.