Titus 3:9-11

Young's Literal Translation

⁹ and foolish questions, and genealogies, and contentions, and strivings about law, stand away from -- for they are unprofitable and vain.

¹⁰ A sectarian man, after a first and second admonition be rejecting,

¹¹ having known that he hath been subverted who [is] such, and doth sin, being self-condemned.