The Diocese of Phoenix celebrated the Feast of the Conversion of St. Paul on Jan. 25.

In a Facebook post, the diocese highlighted the day celebrating St. Paul, who was originally known as Saul of Tarsus.

“Today we celebrate the Feast of the Conversion of St. Paul,” the Diocese of Phoenix wrote in a Facebook post.

According to Brittanica, Paul lived in the first century and worked as a tentmaker. For about the first half of his life, he was a member of the Pharisees, and he actively persecuted members of the early Christian movement.

One day, as Paul was traveling to Damascus, he had a vision that God revealed Jesus to him as his son. Paul later traveled to Jerusalem to meet the apostles, and then he spent the rest of his life preaching and writing.

Paul is credited with writing 13 of the 27 books in the New Testament, although some of them were likely written by his followers.

Among his writings, Paul shared his conversion on the road to Damascus in the Acts of the Apostles.

He described seeing a blinding light when the Lord appeared to him, and then he was unable to see.  A man named Ananias brought Paul into his house and baptized him, and Paul described something like scales falling out of his eyes, and then he was able to see again.