Contradiction with Matthew 5:44
Isaiah 10:6 speaks of sending a nation against others as an act of judgment, while Matthew 5:44 encourages love for enemies and prayer for those who persecute you.
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
Isaiah 10:6 describes the use of force against nations, whereas Romans 12:19 advises leaving vengeance to God and refraining from personal retaliation.
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 James 2:13
Isaiah 10:6 implies an act of judgment without mercy, while James 2:13 teaches that mercy should triumph over judgment.
James 2:13: For he shall have judgment without mercy, that hath shewed no mercy; and mercy rejoiceth against judgment. [rejoiceth: or, glorieth]
Paradox #1
The contradiction or inconsistency might lie in the idea of a loving and just God using an aggressive nation to punish His own people, which can seem harsh or unfair. Some people struggle with understanding how a benevolent deity could allow or cause suffering as a form of correction. This creates a tension between the concepts of divine love and justice.
Paradox #2
Isaiah 10:6 could present a contradiction because it talks about using a nation as an instrument to punish another. This can be seen as inconsistent with the idea of a loving and just deity, as it raises questions about collective punishment and the suffering of innocent people.