| Term | Definition |
| Corinth | This city was the capital city of Achaia, located on a narrow isthmus. It was a city of wealth and immorality, and attracted worshipers of Poseidon |
| Athens | This city was the seat of Greek art, science, and philosophy. Paul visited this city during his second missionary journey and spoke to the citizens about their altar to the unknown god. |
| Ephesus | This city was a large port city along the Aegean Sea in Asia Minor. It boasted a pagan temple dedicated to the Roman goddess Diana (Greek: Artemis). |
| Rome | This city was the capital city of the Roman Empire, |
| Patmos | A small island in the Aegean Sea (roughly four by eight miles), about fifty miles southwest of Ephesus. |
| Jerusalem | The capital city of Israel and Judah; the temple of God was there. |
| Heaven | The place where God lives and rules. |
| Barnabas | The Jerusalem church sent him, a Jew from Cyprus, to Antioch. The church in Antioch commissioned him along with Paul to go on a mission to the Gentiles. |
| Paul | His original name was Saul. He became a follower of Jesus and was recognized as an apostle because Jesus sent him to take Christ's message to the Gentiles. |
| Apostle | A man that God chose to lead his church ; one of the 12 men that Jesus chose to work with him and to teach about him. |
| Roman | A person from Rome. Rome was a powerful city; it had a strong army. |
| Ministry | The service or work connected with religion. |
| Miracle | A great thing that only God can do. |
| Scripture | Another name for God's book, the book of God's holy words, the Bible |
| Jew | A person who is from the family of Abraham, Isaac and Jacob. |
| Son of God | A name or title for Jesus. |
| Peter | This name in Greek signifies a rock, as does also the name Cephas in Syriac. He was one of the twelve apostles, and was also called Simon. |
| Savior | The one who rescues; someone who will bring us to God back from the bad things that we have done; someone who saves us from the bad things other people have done to us. |
| Sinner | A person who breaks God's rules; a person who does not obey God. |
| Sin | To do wrong, bad or evil things; not to obey God; the wrong things that we do. |
| Christ | The Greek word for "the Anointed One," or "God's Chosen One." Another way of describing the Messiah or Savior. |
| Eternal life | To live with God forever and ever, to never die. |
| Gentile | Anyone who is not Jewish. |
| Good News | The message that Jesus came to save us. |
| Gospel | The good news about Jesus. The message that Jesus came to save us. |
| Holy Spirit | God’s Spirit, whom Jesus sends to help people. |
| Jesus | God gave this name to his Son, it means 'he will save'. |