Titus 1:15-16

Young's Literal Translation

¹⁵ all things, indeed, [are] pure to the pure, and to the defiled and unstedfast [is] nothing pure, but of them defiled [are] even the mind and the conscience;

¹⁶ God they profess to know, and in the works they deny [Him], being abominable, and disobedient, and unto every good work disapproved.