Gillan was responsible for most of the lyrics, and I wasn’t a big fan of a couple of them. “Zero the Hero” and “Born Again” were fine, but I thought “Digital Bitch” and “Keep It Warm,” which was about Gillan’s girlfriend, would have worked in Deep Purple, but Sabbath weren’t that kind of band.
I think Geezer is being generous here. The lyrics in Born Again (1983) are mostly terrible, absolutely sinking into Spinal Tap-level stupidity. It is a very heavy record, though. Ian Gillan complains that the mix is muddy thanks to Geezer's involvement in the post-production process, but I consider the heaviness to be one of Born Again's saving graces. I sometimes fantasize about keeping the music and replacing the vocals/lyrics.
