John Lightfoot on John 20:29

[Blessed are they that have not seen, and yet have believed.] "R. Simeon Ben Lachish saith, 'The proselyte is more beloved by the holy blessed God than that whole crowd that stood before mount Sinai. For unless they had heard the thunderings, and seen the flames and lightnings, the hills trembling, and the trumpets sounding, they had not received the law. But the proselyte hath seen nothing of all this, and yet hath come in, devoting himself to the holy blessed God, and hath taken upon him the kingdom of heaven."