One of the men saw a repetition that I missed. In Acts 20:21 – 26, the phrase solemnly testify occurs three times, if you add testify, which has the same Greek root, it is four times in those six verses. But the key to that observation was in Acts 20:22, there Paul states that he was bound by the Spirit.
The observation was that this is nearly identical to what Jesus said. Jesus only did what His Father told Him to do. Here Paul is bound by the Spirit to do what the Spirit leads him to do. Further earlier in the chapter, Acts 20:4, we read the list of men who are traveling with Paul. That mirrors Jesus’ ministry as well. Look at Mark 3:14. Like Jesus, Paul recruited men to follow him, to see his ministry.
Finally, in Acts 20:25 – 35, Paul commits the ministry in Ephesus to the elders there, warning them about false teachers that will come both from in their midst, as well as from outside. Peter shares the same warning in 2 Peter 2:1 – 3; 3:14 – 17.
What I am learning is that when men dig in on their own, then come together to share what they have found, richness emerges. If you are not in a group like this, do whatever you have to, to find one.