Returning back to the subject matter of the thread: How do you reconcile the idea that God is both loving and vengeful? (The Scriptures clearly displays this divine contradition.)
There really is not contradiction because you’re still misinterpreting the Scriptures.
God is Being Itself. He is the source of all Being. And that He creates can only be because He desires, even greatly desires, things other than Himself to share in the existence that He Is. That means that God is a God of Love. God is love.
God must also be true. If God is true, justice requires our acknowledgement of it. To refuse to do so is to deceive ourselves and deny reality and thus offend justice.
Acknowledging God is necessary for our good, not His, for we were created to be in relationship with Him in eternity.
Justice and Mercy are both aspects of God’s love, because God’s love is not blind love but completely accurate. He knows us better than we know ourselves; He created us, so this naturally follows.
“Vengeance” is a term that humans use, and what humans usually take to restore that which they have lost due to the actions of another human, and is usually done disproportionately.
When God says “Vengeance is mine”, He’s not saying that He’s a God of vengeance, He’s saying that we humans have no real right to demand or enact vengeance at all.
When God in the past has permitted acts of violence, they are not acts of “vengeance” but justice.
So really, when you look at it the original question is kind of misleading. There’s obviously no dichotomy between God’s love and God’s justice or mercy, since justice and mercy are aspects of God’s love.
The bottom line is that God gets the justice and we get the mercy.