If you are looking for a bilingual bible to study Japanese with – our recommendation is actually a King James Version that is inside of a Mormon Bible App.
Although we don’t agree theologically with the pearl of great price, doctrine and covenants or the book of mormon, the mormons should be applauded for the great free version of the King James version that they have produced.
The name of the app is called LDS Quad – and contains a full line by line side by side Japanese english translation with furigana.
You can see a few screenshots of it here:
https://apps.apple.com/jp/app/japanese-lds-quad/id1178952951?l=en <—- apple store download link
https://play.google.com/store/apps/details?id=com.nozokada.JapaneseLDSQuad&hl=en&gl=US <—- Android version
Learn Japanese, Cantonese, Mandarin 