4 occurrences across the corpus

King James Version

2 Corinthians 11:6

But though I be rude in speech, yet not in knowledge; but we have been throughly made manifest among you in all things.

KJV Apocrypha (Catholic Deuterocanon)

Sirach (Ecclesiasticus) 8:4

Jest not with a rude man, lest thy ancestors be disgraced.

OT Pseudepigrapha

The Sibylline Oracles 3:838

To all rude people of an empty mind,

The Sibylline Oracles 8:384

To God rude buffetings with impure hands