I am telling [you] the truth in Christ [i.e., since I am a Christian]; I am not lying. My conscience, [confirmed] by the Holy Spirit, supports my statements [as true],
I was appointed to be a preacher [of this testimony] and an apostle and teacher of the true faith to the Gentiles. (I am telling the truth and not lying).
For God, whom I serve wholeheartedly in [preaching] the Gospel of His Son, is my witness [to the truth] of how continually I mention you in my prayers.
As sure as the truth of Christ is in my heart, no one will stop me from boasting about this [arrangement] throughout the regions of Achaia. [Note: This was the province where Corinth was located].
You have been thinking all along that we have been defending ourselves [have you not]? We are [simply] speaking [the truth] before God in [fellowship with] Christ. But everything [we are doing], dear friends, is to build you up [spiritually].
For this is what we boast of: Our conscience testifies that we have conducted ourselves in the world, and especially toward you, in holiness and godly sincerity, not with human wisdom, but with the favor of God.
I solemnly urge you, in the presence of God, and Christ Jesus and the elect [i.e., chosen] angels, that you obey these instructions without showing prejudice [toward anyone], or doing anything out of partiality.
But I appeal to God as my witness [i.e., to verify that I am telling the truth]; it was in order to spare you [i.e., from a disciplinary action] that I decided not to return to Corinth.
In doing this [i.e., practicing some of the requirements of the Law of Moses], they demonstrate that these requirements are written in their hearts. Their conscience tells them this, and their thoughts alternately accuse them [of wrongdoing], or else endorse them [for doing right]).