The renowned speaker, writer, pastor and Christian thinker Tim Keller has spoken of how, despite living with advanced “incurable” cancer, he prays for healing at least twice a day.

Keller, who has been dubbed New York's “pastor to skeptics”, and has written multiple bestselling books, spoke to Premier’s Unbelievable? about his stage four pancreatic cancer and how despite knowing that “God doesn’t have to” heal him, he still believes for it.

The married father of three who founded Redeemer Presbyterian Church in Manhattan and co-founded Redeemer City to City, a church planting organisation, was diagnosed with pancreatic cancer in May 2020, aged 69.

Having undergone two years of chemotherapy, and now as he is taking part in an immunotherapy drug trial, he is grateful for modern medicine keeping the cancer at bay thus far.

In a live online show hosted by Ruth Jackson and Justin Brierley he answered audience questions on his journey with pancreatic cancer, his transformed prayer life and his new book 'Forgive'.

But in speaking to Unbelievable? about his condition, he said: “Even though my doctor told me that there is no cure for pancreatic stage four cancer, once it’s out there you will die of it, I’ve been praying for healing. God can do it or he doesn't have to do it. I mean, this is years and years of experience with him.”

He added: “It's not like we haven't struggled. But I think in the years of experiences, the Lord, he knoweth. And I can't possibly be sure. He knows. So, I mean, ultimately, I'm praying for healing. And just the fact that I may not get that is something that I have to say, "Okay, God knows".

You can watch the full interview from 6pm on Friday.