The imprisonment of Paul had a great impact on his ministry. In the first place, we know that there were several imprisonments. Scholars debate about how many, but we know that Paul was, for a short time, in prison in Philipi, along with Silas (Acts 16:19ff.). We know that the Philippian jailor and others were saved. We know from Paul’s letter to the Philippians that because of his imprisonment, many of the saints were encouraged to boldly proclaim their faith (Philippians 1:12-14).
But beyond this, we know that Paul’s imprisonments had a very great impact on others, including us, today. Because Paul was in prison, he could not go to visit the churches, and to teach others, and so Paul would send others in his place. This multiplied his ministry through men like Timothy and Titus.
In addition, Paul was “forced” to communicate with these saints and churches in writing. If Paul had not been in prison, the “Prison Epistles” (for example) would not have been written. Many of the books we read in the New Testament are the result of Paul’s imprisonment.
And finally, because Paul could not minister to the saints in person, he spent considerable time praying for them. We see Paul speaking of praying for these saints regularly (see 2 Timothy 1:3). This “limitation” of imprisonment did not limit the gospel, nor the great apostle Paul. It was, in fact, because of his imprisonment that God’s purposes and promises for Paul were realized (see Acts 9:15-16; Acts 22-28; Philippians 4:22).