King’s words still ring, but his work is not complete. Americans have come a long way since the 1960s, but the dream is not yet fully realized.

After the 2016 police shootings in Dallas, Minnesota, and Louisiana, we challenged our constituents and people everywhere we went with a simple question, “Have you or your family ever invited a person or a family of another race to your home for dinner?” We called it “Solution Sundays.”

Sunday is a slower, yet significant day, for most Americans. So, we challenged each family to give one Sunday lunch or dinner for building relationships across race and ethnicity, to literally be part of the solution in America. Any other day of the week would work as well; the goal is for people to engage on a personal level in their own homes, to break down walls, to listen, and to build trust across communities. It is harder to stereotype people that you know.

When is the last time you or your family had dinner in your home with a person or family of another race?

We are convinced that we will never get all the issues about race on the table, until we get our feet under the same table and talk like friends. At its core, racial divisions are a heart issue, not a skin-color issue. Our children need to see their parents developing friendships around the dinner table with people who look different, so that the next generation can be different.

The same goes for civil discourse in America. The love and respect that King spoke about do not require absolute uniformity or watered-down viewpoints. They require respect for cultures and views that are different, and an understanding that people who are different are not the problem in America; they are our brothers and sisters in humanity.

Sadly, our cultural discourse often looks like hate trying to drive out hate, rather than allowing light and love to drive out hate.

Our national leaders should model this truth rather than just reflect the culture. Just take a glance at social media and cable news, and you’ll see disrespectful shouting and shaming that descends on our country and our children like a cold rain. In fact, you can test that theory by posting this op-ed to your social media account, and you will probably see what we’re talking about within minutes. This sort of rhetoric threatens our ability to weave together multiple communities together to form a single nation; it loses sight of the fact that all people are made in the image of God and have worth and human dignity.

After two centuries, we are making progress on race, but we seem to be rapidly losing our “melting pot” of ideas, respect, and acceptance. A trend has emerged that encourages people to listen only to people who are the same or share their values, philosophy, and ideas, then dismiss or belittle anyone who is different or disagrees, even if they only disagree on a few issues. A good burn is the new goal, rather than a good word. We still need the reminder that “love is the only force capable of transforming an enemy into a friend.”

Let this year’s Martin Luther King Jr. Day be a time where we, as Americans, honor his memory and legacy by engaging neighbors who are different. If the national pendulum is ever going to swing, it will require role models in every community who don’t just call out for respectful engagement, but live it.

We want to hear what you think about this article. Submit a letter to the editor or write to letters@theatlantic.com.

James Lankford is a United States Senator from Oklahoma.