The 39-year-old singer split from Miranda Lambert in July 2015. While he is now in a happy relationship with Gwen Stefani, the end of his marriage was a very difficult time for him, and Blake used his music to cope.

One of the resulting songs is Savior's Shadow - a hymn-like tune which features lyrics including "I feel the rain, I hear the thunder/As He cries for me".

"We both knew that it wasn’t going to work out, and I was walking around, randomly singing that song to myself, and somehow it would make me feel better," Blake told Billboard.com. "At first I thought it was that I’m so sad and pitiful that even God feels sorry for me and He’s crying for me. And then I thought, 'No, it’s just that He’s on this journey with me and He’s walking with me.'"

Blake added that he isn't interested in the track being a chart hit, but felt it was important to share the message of the song.

"I’m not trying to get a No. 1 song out of this," he explained. "I just feel like it needs to be shared with everybody. I feel like people need to be aware of this song for whatever it might mean to them."

Savior's Shadow is vastly different to Blake's previous offerings. While the gospel nature of the tune may turn off some fans, Blake isn't worried about that, as it marks such an important development in his own life.

"I can, on some level, understand a pushback," he said. "But this is from a different place. I feel like that song helped save my life."

Savior's Shadow is from Blake's latest album If I'm Honest.