The answer is: Titus

...Timothy... Titus... PHILEMON... Hebrews.

Philemon is one of the shortest books in the New Testament, tucked away right after Titus. In Paul’s letters, Philemon is unique because it’s a personal plea rather than a broad epistle meant for an entire congregation. Here, Paul is gently asking Philemon to receive Onesimus, a runaway slave, back not just as a slave, but as a brother in Christ. This powerful letter nudges us to think deeply about concepts like forgiveness and equality.

Interestingly, both Timothy and Titus—to whom Paul also wrote letters—were his trusted companions tasked with maintaining order and doctrine in growing churches. Timothy often acted in a leadership role while in cozy, bustling Ephesus, while Titus had an important job managing communities on the island of Crete, where Paul humorously noted that "Cretans are always liars."

Now, if we transition to the heart of Philemon, we encounter a reflective slap of conscience. The letter begs us to consider our own relationships and the “Onesimuses” in our lives—people who may have wronged us, but can be welcomed back with love. This message of redemption resonates throughout the New Testament, echoing the central themes of grace and community that underline early Christian teachings. After all, wouldn’t we want the same grace if the shoes were on our feet?