Many will follow their immoral lifestyle, and because of them the way of truth (alētheias | ἀληθείας | gen sg fem) will be maligned.

Therefore I intend to keep on reminding you of these things, even though you know them and are established in the truth (alētheia | ἀληθείᾳ | dat sg fem) that you now have.

Since you have purified your souls by obedience to the truth (alētheias | ἀληθείας | gen sg fem) so that there is a sincere love for other believers, love one another fervently from a pure heart,

My brothers, if anyone among you strays from the truth (alētheias | ἀληθείας | gen sg fem) and someone brings him back,

But if you have bitter jealousy and selfish ambition in your heart, do not be arrogant and tell lies against the truth (alētheias | ἀληθείας | gen sg fem).

According to his sovereign plan, he brought us into being through his word of truth (alētheias | ἀληθείας | gen sg fem), so that we would be a kind of first fruits of all he created.

For if we deliberately persist in sin after receiving the knowledge of the truth (alētheias | ἀληθείας | gen sg fem), there is no longer any sacrifice for sins,

not being devoted to Jewish myths and commandments of people who are turning away from the truth (alētheian | ἀλήθειαν | acc sg fem).

Paul, a servant of God and an apostle of Jesus Christ, for the faith of the elect of God and the knowledge of the truth (alētheias | ἀληθείας | gen sg fem) that produces godliness,

and they will turn away from listening to the truth (alētheias | ἀληθείας | gen sg fem) and wander off into the myths.