But when the fullness of time had come, God sent forth his Son, born of woman, born under the law, to redeem those who were under the law, so that we might receive adoption as sons. (Galatians 4:4,5 ESV)
Adopted
The Roman emperors used to adopt the children of their enemies, after war. It would be interesting to see how successful that was, statistically. But God does not adopt us to keep us under His thumb or to humiliate His previous enemies.
God adopted us because He knows how much we need Him in our lives.
Not merely in a comforting or provisional sort of way, but by necessity.
In this world of arrogant and ignorant rebellion against God, sins’ effects are devastating and eternal. And the only people who will find true and full relief are the children of God.
So, He adopted us.
We are peculiar, we are adopted.