His retirement appears to have been hastened by his diagnosis with prostate cancer in 2001.[39] He remained an unofficial counselor in the church, his advice being sought when the church leadership needed help.
Yohana alistafu kazi mwinjilisti mwaka 2002. Kujihudhuru kwake kuliharakishwa na ugonjwa wa kansa ya kibofu cha mkojo mwaka 2001.[39] Baada ya kujihudhuru aliendelea kuwa mshauri pale ambapo uongozi wa kanisa ulihitaji msaada.