How did early Christians explain their beliefs?

F. Bishops defined the official teachings of the Church.

G. Priests explained Christian beliefs to their congregations.

H. The apostles told stories about Jesus.

I. Church Fathers, like Augustine, explained Christian beliefs.

H. The apostles told stories about Jesus.

Explanation:

Christianity began in the 1st century AD after Jesus died, as a small group of Jewish people in Judea, but quickly spread throughout the Roman empire. Despite early persecution of Christians, it later became the state religion. In the Middle Ages it spread into Northern Europe and Russia.