Titus was a Greek believer taught and nurtured by Paul, who later became the overseer of the churches on the island of Crete. This letter helps us know how to train others to lead and teach. The church there was most likely started in Jerusalem at Pentecost.

How do we “make the teaching about God our Savior attractive”? (Titus 2:10)

Titus 2:15
These, then, are the things you should teach. Encourage and rebuke with all authority. Do not let anyone despise (disregard) you.

“Encourage and rebuke” is to build others up but to also hold others to account, as we should have someone to hold us to account. In other words, we need a Barnabas in our lives.

Titus 1:2
a faith and knowledge resting on the hope of eternal life, which God, who does not lie, promised before the beginning of time,

Eternal life was promised to us before the beginning of time. These plans were established before the creation, before time began. What an amazing thought! But not only does God promise eternal life through Jesus, He has promised us wisdom, destined for our glory before time began.
1 Cor 2:7
No, we speak of God's secret wisdom, a wisdom that has been hidden and that God destined for our glory before time began.
And not only does He promise us eternal life and wisdom and glory, He redeems us and He summons us by name!
Isa 43:1
But now, this is what the LORD says-- he who created you, O Jacob, he who formed you, O Israel: "Fear not, for I have redeemed you; I have summoned you by name; you are mine.
And not only does He summon us by name, He leads us out!
John 10:3
The watchman opens the gate for him, and the sheep listen to his voice. He calls his own sheep by name and leads them out.

Totally AMAZING!