For I consider that I am not at all inferior to the most eminent apostles. 6 Even though I am untrained in speech, yet I am not in knowledge. But we have been thoroughly manifested among you in all things.
7 Did I commit sin in humbling myself that you might be exalted, because I preached the gospel of God to you free of charge? 8 I robbed other churches, taking wages from them to minister to you. 9 And when I was present with you, and in need, I was a burden to no one, for what I lacked the brethren who came from Macedonia supplied. And in everything I kept myself from being burdensome to you, and so I will keep myself. 10 As the truth of Christ is in me, no one shall stop me from this boasting in the regions of Achaia. 11 Why? Because I do not love you? God knows!
12 But what I do, I will also continue to do, that I may cut off the opportunity from those who desire an opportunity to be regarded just as we are in the things of which they boast. 13 For such are false apostles, deceitful workers, transforming themselves into apostles of Christ. 14 And no wonder! For Satan himself transforms himself into an angel of light. 15 Therefore it is no great thing if his ministers also transform themselves into ministers of righteousness, whose end will be according to their works.
—2 Corinthians 11:5-15.
Out of love for the church, he labours for them in the gospel for no payment, so as not to be burdensome to them, and will continue to do so. This is not for his personal gain but for their welfare.
The false apostles appear as true apostles of Christ and as ‘ministers of righteousness’, just as Satan himself appears as an angel of light. They are corrupt but their ‘end will be according to their works’. [The Bible Panorama.]