I think that this song is about a girl dreaming of this guy or her 'Saviour' who she will fall in love with and he will love her back and they'll live happily ever after.
And she finds this guy, but he's not really the one, but he's good enough, 'he doesn't look a thing like Jesus [i.e he's not her saviour], but he talks like a gentleman.'
And at the end she just accepts him, 'he doesn't look a thing like Jesus/ But more that you'll ever know.
I think that this song is about a girl dreaming of this guy or her 'Saviour' who she will fall in love with and he will love her back and they'll live happily ever after. And she finds this guy, but he's not really the one, but he's good enough, 'he doesn't look a thing like Jesus [i.e he's not her saviour], but he talks like a gentleman.' And at the end she just accepts him, 'he doesn't look a thing like Jesus/ But more that you'll ever know.