Matthew 8:13

ὕπαγε, etc.: compressed impassioned utterance, spoken under emotion = Go, as thou hast believed be it to thee; cure as thorough as thy faith. The καὶ before ὡς in T. R. is the addition of prosaic scribes. Men speaking under emotion discard expletives.

Weizsäcker (Untersuchungen über die Evang. Gesch., p. 50) remarks on the felicitous juxtaposition of these two narratives relatively to one another and to the Sermon on Mount. “In the first Jesus has to do with a Jew, and demands of him observance of the law. In this respect the second serves as a companion piece, the subject of healing being a heathen, giving occasion for a word as to the position of heathens. The two combined are happily appended to a discourse in which Jesus states His attitude to the law, forming as complements of each other a commentary on the statement.”