"One of Those Days" by Ozzy Osbourne, from 2022's Patient Number 9.
No, the song isn't about rejecting faith in Jesus, it's just the opposite:
[Osbourne's] honest humanity comes through in "One Of Those Days" as he sings about the struggle to hold onto his faith in Jesus in the midst of a world in flames.
Osbourne made clear that "One Of Those Days" is not an anti-Christian song. Really, it's lyrics are obviously pro-Christian in the sense that for one's faith to be tested, there had to be faith there to begin with. It likely wouldn't have been an issue at all if it weren't for Osbourne's past reputation.