Looking up the lyrics.
One More Light - it basically says "who cares if people did, life is short anyways". What part of that is remotely close to anything gospel?
Talking To Myself - it can be twisted to sound Christian, but it's not. It sounds like it was meant towards a girl. Still not gospel.
What I've Done - again, nothing to do with God. Again, not gospel.
Methinks you need to check out the meaning of the word gospel. Nothing here falls into that category. Including the musicians.