The apostle Paul wrote this epistle to Titus, “a true son in our common faith” (vs. 4). The salutation indicates that, as with Timothy (cf. 1 Timothy 1:2), Paul’s teaching had led to Titus’ conversion.
It was common for Paul, in his epistles, to defend his apostleship as being from God. Paul was not a usurper. In these few verses he states an eloquent argument for his apostleship, as a part of God’s overreaching scheme of redemption for man.
Paul’s apostleship was according to faith. It emanated from God. He states that God had committed him to the proclamation of that faith. God chose through the “foolishness of the message preached to save those who believe” (1 Corinthians 1:21).
So, the emphasis here is not really on Paul as a bondservant and an apostle, but on the message he was to proclaim. Paul describes that gospel as that which “accords with godliness” (vs. 1). It leads to a holy life. As such, it is “in hope of eternal life.” That is, in leading the elect to righteousness, it provides standing with God in judgment. This eternal hope is something we are assured of, as it is promised by God, and God can not lie (cf. vs. 2, Hebrews 6:18). This promise, as Paul indicated, predates the creation of man (cf. vs. 2).
