When we are intentional about making room in our lives for people who think differently than we do, it can help us become the answer to that prayer by reminding us of all that we have in common with our fellow Christians.
The only remedy for the sinful human heart is one illustrated by the hostages-for-prisoners exchanges over the weekend: trading the innocent for the guilty to free the latter through the suffering of the former.
I say all of that to say this: an excellent test of character is to see how sacrificially we serve others when such service does not benefit us personally.
As with explanations for suffering, God does not want us to know when Christ will return, so we will prepare every day for his coming. Why? Because the best way to live every day is to live as if it were that day.