There exists a certain kind of pastor who consistently pronounces 'Jesus' with the emphasis on both syllables. 'Jesus', like most two-syllable proper nouns, is properly a trochee: Jesus. Robert and Kevin work much the same way. With the emphasis on both syllables, 'Jesus' becomes a spondee: Je-sus. This sounds a little odd.
My theory? This kind of pastor sees lack of emphasis as akin to lack of respect, and thinks that by stressing twice the number of syllables as others he expresses twice the amount of piety.