I'm going to show you three images used by neurologists to determine how your brain works. I’m not showing them to you to ask if your brain is working, just to demonstrate we don’t always see what is apparent to others.
In the first picture, there aretwo faces: which is male, which is female?
In the second picture, the Coffer Illusion, do you see circles or squares?
In the third picture, the Mask of Love, what do you see?
The person in the first picture is the same person, just with different lighting. We use contrast to see, learning to see what is different, and people as different.
There are circles and squares in the second image; if you look long enough you will see. We see what we are trained to see, and only see what else is there once we have made sense of our initial impression. If we are willing to keep looking we see more.
The Mask of Love is either one person or one person kissing another (hint, look at the nose). This demonstrates that we are able to flip between two reasonable and legitimate alternatives.
Our ability to notice others depends on all of these processes. Assuming we are created with our differences, we can either choose to see people as just different or as different from what we want to see. If we are willing to keep looking at someone we will see more, more complexity and beauty. Eventually we may see the differences as reasonable and legitimate. Or we can choose to see only what we want to see, a problem of which the religious leaders of Jesus' time suffered.