Sustainable faith is a fruit of the select seed, viz.: firsthand knowledge of Jesus Christ's divine identity and authority as defined in his glorious death on the cross noted in the prologue, body and epilogue of the gospel (John 1: 50-51; 8: 21-32; 10: 17-18, 37-38; 14: 15-21; 16: 5-15; 17: 1-5 ...