Perhaps it has something to do with our biology or our culture, but we humans are so prone to think there is safety in similarity. Difference is somehow threatening.

And as long as we continue to fixate on what divides us, what makes us different from one another, we will remain “strangers to the covenant of God’s promise.” But as Paul points out, it is the blood of Christ that brings us near to one another. Jesus willingly lays down his life to shatter the divisions between us and show us what it really means to be human: to love one another.

Dying on the cross, shedding his blood, Jesus shows us that we are all bound to a common humanity: all broken, all vulnerable, all in need of one another. In Christ's blood, we are brought near to one another.
 

by Tim Moore from d365.org