assuming that you have heard of him and were taught in him, as the truth (alētheia | ἀλήθεια | nom sg fem) is in Jesus.

You also are in him, having heard the word of truth (alētheias | ἀληθείας | gen sg fem), the good news of your salvation; in him also, when you believed, you were marked with the seal of the promised Holy Spirit,

You were running well; who hindered you from obeying the truth (alētheia | ἀληθείᾳ | dat sg fem)?

But when I saw that they were not behaving in a manner consistent with the truth (alētheian | ἀλήθειαν | acc sg fem) of the gospel, I said to Cephas before them all, “If you, born a Jew, live like a Gentile and not like a Jew, by what right are you trying to make the Gentiles live like Jews?”

but to them we did not yield in submission even for a moment, so that the truth (alētheia | ἀλήθεια | nom sg fem) of the gospel would be preserved for you.

For we cannot do anything against the truth (alētheias | ἀληθείας | gen sg fem), but only for the truth (alētheias | ἀληθείας | gen sg fem).

For even if I should choose to boast, I would not be foolish, because I would be telling the truth (alētheian | ἀλήθειαν | acc sg fem). But I refrain from this, so that no one will give credit to me beyond what he sees in me or he hears from me,

As the truth (alētheia | ἀλήθεια | nom sg fem) of Christ is in me, this boasting of mine will not be put to silence in the districts of Achaia.

For if I have boasted to him about anything regarding you, I have not been embarrassed, but just as everything we said to you was true, so also our boast to Titus about you has proved true (alētheia | ἀλήθεια | nom sg fem).

by the word of truth (alētheias | ἀληθείας | gen sg fem), by the power of God; with the weapons of righteousness both for the right hand and for the left;