such as the Didascalia Apostolorum and the Pædagogus, for the purpose of modesty. Verse four of 1 Corinthians 11 uses the Greek words () for "head covered", the same Greek words used in Esther 6:12 (Septuagint) where "because he [Haman] had been humiliated, he headed home, draping an external covering over his head" (additionally certain manuscripts of the Septuagint in Esther 6:12 use the Greek words , which is the "perfect passive participle of the key verb used in 1 Corinthians 11:6 and 7 for both a man’s and a woman’s covering his or her head [κατακαλύπτω]")—facts that New Testament scholar Rajesh Gandhi states makes it clear that the passage enjoins the wearing of a cloth veil by Christian women. Biblical scholar Christopher R. Hutson contextualizes the verse citing Greek texts of the same era, such as Moralia: Verses five through seven, as well as verse thirteen, of 1 Corinthians 11 use a form of the Greek word for "veiled", κατακαλύπτω katakalupto; this is contrasted with the Greek word περιβόλαιον peribolaion, which is mentioned in verse 15 of the same chapter, in reference to "something cast around" as with the "hair of a woman … like a mantle cast around". These separate Greek words indicate that there are thus two headcoverings that Paul states are compulsory for Christian women to wear, a cloth veil and her natural hair. The words Paul uses in 1 Corinthians 11:5 are employed by contemporary Hellenistic philosophers, such as Philo (30 BC–45 AD) in Special Laws 3:60, who uses "head uncovered" (akatakalyptō tē kephalē) [ἀκατακαλύπτῳ τῇ κεφαλῇ] and "it is clear that Philo is speaking of a head covering being removed because the priest had just removed her kerchief"; additionally, akatakalyptos [ἀκατακάλυπτος] likewise "means 'uncovered' in Philo, Allegorical Interpretation II,29, and in Polybius 15,27.2 (second century BC)." 1 Corinthians 11:16 concludes the passage Paul wrote about Christian veiling: "But if anyone wants to argue about this, I simply say that we have no other custom than this, and neither do God's other churches." Michael Marlowe, a scholar of biblical languages, explains that Saint Paul's inclusion of this statement was to affirm that the "headcovering practice is a matter of apostolic authority and tradition, and not open to debate", evidenced by repeating a similar sentence with which he starts the passage: "maintain the traditions even as I delivered them to you". Interpretive issues There are several