Greek

ὅστις οὖν ταπεινώσει ἑαυτὸν ὡς τὸ παιδίον τοῦτο οὗτός ἐστιν ὁ μείζων ἐν τῇ βασιλείᾳ τῶν οὐρανῶν

Transliterated

hostis oun tapeinōsei heauton hōs to paidion touto houtos estin ho meizōn en tē basileia tōn ouranōn

Literal English

who therefore will humble himself as the child this this is - greatest in the kingdom of the heavens:
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