It is evangelizing and catechizing. We've got Jesus. God's only son. To evangelize is to proclaim the good news that God so loved the world that he sent us Jesus, that whosoever should believe would have eternal life. Evangelization requires preaching.
Catechesis requires teaching.
Evangelization is preaching to the unsaved and catechesis is teaching the saved. I use the theme evangelizing catechetically because as we journey through the Scripture, we understand how Jesus himself evangelized and catechized. They work simultaneously. The characteristics of evangelization are distinct from catechesis. It is the preaching of the gospel of our Lord Jesus Christ.