'In Me' in the Bible

For we don’t dare classify or compare ourselves with some who commend themselves. But in measuring themselves by themselves and comparing themselves to themselves, they lack understanding.

As the truth of Christ is in me, this boasting of mine will not be stopped in the regions of Achaia.

For if I want to boast, I will not be a fool, because I will be telling the truth. But I will spare you, so that no one can credit me with something beyond what he sees in me or hears from me,

But He said to me, “My grace is sufficient for you, for power is perfected in weakness.” Therefore, I will most gladly boast all the more about my weaknesses, so that Christ’s power may reside in me.

since you seek proof of Christ speaking in me. He is not weak toward you, but powerful among you.