In other comments we have referred to Paul’s consistent claim in his letters that his apostleship was from God. When the Lord appeared to him on the road to Damascus (in Acts 9), it was for the purpose of establishing his credentials as an apostle. “Then last of all He was seen by me also, as by one born out of due time” (1 Corinthians 15:8).
Likewise, the greeting of “grace, mercy and peace” from God and His Son is typical of Paul’s letters, though the added blessing of “mercy” is limited to his letters to Timothy and Titus.
The affirmation that the promise of spiritual life is realized “in Christ Jesus” is the central theme of the gospel. It was also the central emphasis of Paul’s preaching. As Paul wrote, “For I determined not to know anything among you except Jesus Christ and Him crucified” (1 Corinthians 2:2). Jesus’ sacrifice for our sins, and his subsequent victory over death is the basis of our hope. It was Paul’s reason for serving as an ambassador of the Lord.
It is also important to note Paul’s tender reference to Timothy as “a beloved son.” Timothy was a constant and faithful companion to Paul, and gave him great comfort. For this Paul was thankful (vs. 3).
