Timothy Keller is sharing his comfort and joy this Christmas season while battling cancer. 

"I have Stage IV pancreatic cancer," Keller tweeted on Friday. "But it is endlessly comforting to have a God who is both infinitely more wise and more loving than I am. He has plenty of good reasons for everything He does and allows that I cannot know, and therein is my hope and strength."

The well-known Christian speaker and pastor of Redeemer Presbyterian Church in New York City announced his cancer diagnosis in early June 2020. 

Following up later that day, Keller tweeted, "I deeply appreciate prayer for my situation! But my main purpose in the last post was to show that having a God who in some ways is beyond our comprehension (esp regarding evil and suffering) is more of a spiritual strength than it is an intellectual problem."

This is not the first time Keller has battled cancer. In 2002 he was diagnosed with thyroid cancer. After battling and winning that fight, Keller wrote about his experience in his book Walking With God Through Pain and Suffering, released in 2013. 

"It was both an intellectual and emotional experience: You're facing death, you're not sure you're going to get over the cancer. And the rigorous intellectual process of going through all the alternative explanations for how the Christian Church started. Except the resurrection, none of them are even tenable. It was quite an experience," Keller said around the time of the book's release.