We want you to know, brothers and sisters, about the grace of God that was given to the churches of Macedonia: During a severe trial brought about by affliction, their abundant joy and their extreme poverty overflowed in a wealth of generosity on their part. I can testify that, according to their ability and even beyond their ability, of their own accord, they begged us earnestly for the privilege of sharing in the ministry to the saints, and not just as we had hoped. Instead, they gave themselves first to the Lord and then to us by God's will. So we urged Titus that just as he had begun, so he should also complete among you this act of grace.

Now as you excel in everything—in faith, speech, knowledge, and in all diligence, and in your love for us—excel also in this act of grace. I am not saying this as a command. Rather, by means of the diligence of others, I am testing the genuineness of your love. For you know the grace of our Lord Jesus Christ: Though he was rich, for your sake he became poor, so that by his poverty you might become rich. And in this matter I am giving advice because it is profitable for you, who began last year not only to do something but also to want to do it. Now also finish the task, so that just as there was an eager desire, there may also be a completion, according to what you have. For if the eagerness is there, the gift is acceptable according to what a person has, not according to what he does not have. It is not that there should be relief for others and hardship for you, but it is a question of equality. At the present time your surplus is available for their need, so that their abundance may in turn meet your need, in order that there may be equality. As it is written: The person who had much did not have too much, and the person who had little did not have too little.

Thanks be to God, who put the same concern for you into the heart of Titus. For he welcomed our appeal and, being very diligent, went out to you by his own choice. We have sent with him the brother who is praised among all the churches for his gospel ministry. And not only that, but he was also appointed by the churches to accompany us with this gracious gift that we are administering for the glory of the Lord himself and to show our eagerness to help. We are taking this precaution so that no one will criticize us about this large sum that we are administering. Indeed, we are giving careful thought to do what is right, not only before the Lord but also before people. We have also sent with them our brother. We have often tested him in many circumstances and found him to be diligent—and now even more diligent because of his great confidence in you. As for Titus, he is my partner and coworker for you; as for our brothers, they are the messengers of the churches, the glory of Christ. Therefore, show them proof before the churches of your love and of our boasting about you.
– 2 Corinthians 8

So then, dear friends, since we have these promises, let us cleanse ourselves from every impurity of the flesh and spirit, bringing holiness to completion in the fear of God.

Make room for us in your hearts. We have wronged no one, corrupted no one, taken advantage of no one. I don't say this to condemn you, since I have already said that you are in our hearts, to die together and to live together. I am very frank with you; I have great pride in you. I am filled with encouragement; I am overflowing with joy in all our afflictions.

In fact, when we came into Macedonia, we had no rest. Instead, we were troubled in every way: conflicts on the outside, fears within. But God, who comforts the downcast, comforted us by the arrival of Titus, and not only by his arrival but also by the comfort he received from you. He told us about your deep longing, your sorrow, and your zeal for me, so that I rejoiced even more. For even if I grieved you with my letter, I don't regret it. And if I regretted it—since I saw that the letter grieved you, yet only for a while— I now rejoice, not because you were grieved, but because your grief led to repentance. For you were grieved as God willed, so that you didn't experience any loss from us. For godly grief produces a repentance that leads to salvation without regret, but worldly grief produces death. For consider how much diligence this very thing—this grieving as God wills—has produced in you: what a desire to clear yourselves, what indignation, what fear, what deep longing, what zeal, what justice! In every way you showed yourselves to be pure in this matter. So even though I wrote to you, it was not because of the one who did wrong, or because of the one who was wronged, but in order that your devotion to us might be made plain to you in the sight of God. For this reason we have been comforted.

In addition to our own comfort, we rejoiced even more over the joy Titus had, because his spirit was refreshed by all of you. For if I have made any boast to him about you, I have not been disappointed; but as I have spoken everything to you in truth, so our boasting to Titus has also turned out to be the truth. And his affection toward you is even greater as he remembers the obedience of all of you, and how you received him with fear and trembling. I rejoice that I have complete confidence in you.
– 2 Corinthians 7:1-13

We are not giving anyone an occasion for offense, so that the ministry will not be blamed. Instead, as God’s ministers, we commend ourselves in everything: by great endurance, by afflictions, by hardships, by difficulties, by beatings, by imprisonments, by riots, by labors, by sleepless nights, by times of hunger, by purity, by knowledge, by patience, by kindness, by the Holy Spirit, by sincere love, by the word of truth, by the power of God; through weapons of righteousness for the right hand and the left, through glory and dishonor, through slander and good report; regarded as deceivers, yet true; as unknown, yet recognized; as dying, yet see—we live; as being disciplined, yet not killed; as grieving, yet always rejoicing; as poor, yet enriching many; as having nothing, yet possessing everything. We have spoken openly to you, Corinthians; our heart has been opened wide. We are not withholding our affection from you, but you are withholding yours from us. I speak as to my children; as a proper response, open your heart to us.

Do not be yoked together with those who do not believe. For what partnership is there between righteousness and lawlessness? Or what fellowship does light have with darkness? What agreement does Christ have with Belial? Or what does a believer have in common with an unbeliever? And what agreement does the temple of God have with idols? For we are the temple of the living God, as God said:

I will dwell
and walk among them,
and I will be their God,
and they will be my people.

Therefore, come out from among them
and be separate, says the Lord;
do not touch any unclean thing,
and I will welcome you.

And I will be a Father to you,
and you will be sons and daughters to me,
says the Lord Almighty.

– 2 Corinthians 6:3-18