'Reject' in the Bible

not paying attention to Jewish myths and the commandments and rules of men who turn their backs on the truth.

It teaches us to reject ungodliness and worldly (immoral) desires, and to live sensible, upright, and godly lives [lives with a purpose that reflect spiritual maturity] in this present age,

After a first and second warning reject a divisive man [who promotes heresy and causes dissension—ban him from your fellowship and have nothing more to do with him],