Titus 1:13-15 New English Translation (NET Bible)
13 Such testimony is true. For this reason rebuke them sharply that they may be healthy in the faith 14 and not pay attention to Jewish myths and commands of people who reject the truth. 15 All is pure to those who are pure. But to those who are corrupt and unbelieving, nothing is pure, but both their minds and consciences are corrupted.