To what groups did Paul want to spread the teachings of Jesus?

Answer 1

1 Corinthians 9:19-21 - For though I am free from all men, I have made myself a servant to all, that I might win the more; and to the Jews I became as a Jew, that I might win Jews; to those who are under the law, as under the law, that I might win those who are under the law; to those who are without law, as without law (not being without law toward God, but under law toward Christ), that I might win those who are without law; to the weak I became as weak, that I might win the weak. I have become all things to all men, that I might by all means save some.[NKJV]

Answer 2

The Gentiles, which is literally "the nations."

In the early days of the Church, the teachings of Jesus were shared first of all with the Jews, but it soon became apparent that non-Jews wanted to hear the message as well.

Paul reported that Jesus had specially called him to take his message to the nations, and while Paul wanted to take his message to the Jews as well, his message was welcomed by non-Jews. This became the main focus of his work, particularly after he was sent on the first missionary journey by the church in Antioch (in Syria) to Cyprus and Anatolia (modern Turkey).