Whom we preach, warning every man, and teaching every man in all wisdom; that we may present every man perfect in Christ Jesus:
Whereunto I also labour, striving according to His working, which worketh in me mightily.
In verse 28, the pronoun Whom refers back to v. 27, the Lord, Jesus Christ. Some translations use the word Him instead of Whom. It indicates that Jesus Christ was the sum total of all that Paul preached. He didn’t entertain with one funny story after another. He didn”t preach anything or anyone except the Lord Jesus Christ. He was totally focused on presenting Jesus wherever he went, including doing so from his prison cell.
He taught Jesus Christ, God in the flesh, come down to earth to save all mankind. The word man in this passage embraces all humankind. It excludes no one.
His goal was to present all those who heard the gospel perfect (full grown, complete, mature) in the knowledge of Jesus.
The word warning in v. 28 is also translated as counseling or helping to impart understanding. Paul’s desire, his life’s work, was to establish and enable people to grow in the knowledge and understanding of Jesus Christ.
Paul not only preached; he taught, mentored, encouraged, poured his heart and life into the ministry of spreading the gospel wherever he went. It was his sole purpose in life.
I’ve done a lot of public speaking over the years. I can tell you that preparing for one session in which I am the speaker isn’t nearly as much work as dealing with individuals on a daily basis, helping them grow in the Lord. More than that, making sure that I practice what I preach so that my walk is not a stumbling block to anyone who is watching is a daily goal.
Be certain, if you are a believer, there is someone who is watching you. People are watching to see if your walk matches up with your talk.
Finally, Paul clarifies that it is not he himself who is powerful in the work of the gospel, but rather it is the work of the Holy Spirit in him that constrains him to waste no time feeling sorry for himself or questioning his circumstances.
That same Holy Spirit enables us today. All we need to do is to seek Him with all our hearts, and He will supply what we need for the ministry of the gospel.