Clement of Alexandria The Instructor Book I Wherefore He Himself, declaring Himself very beautifully, likened Himself to a grain of mustard-seed;[257] Hippolytus Refutation of All Heresies Book V That which is, he says, nothing, and which consists of nothing, inasmuch as it is indivisible-(I mean) a point-will become through its own reflective power a certain incomprehensible magnitude. This, he says, is the kingdom of heaven, the grain of mustard seed,[124]