Finally, it was Dr. Tim Keller. However, I was disappointed at his sermon. Though, it is still Gospel centered. Bisgrove's sermon in the previous week was much better, content-wise.
Keller broke down how to deal with truth into 3 categories: 1. hide, 2. too direct, 3. show truth (without hurting others). Obviously, he's promoting the 3rd kind. I should know by now this is typical of him. After all, he did say when he first started the church, perhaps regrettably, "My church will not be like other churches!".
I would regroup his always-must-be-3-category content into only 2:
1. hide the truth, 2. show the truth.
I'll put his #2 into #1. Because the hypocritical view of the truth generally hides the true practical truth. This way, I can live with 2 Corinthians 10:7, ...let him of himself think this again, that, as he is Christ's, even so are we Christ's.