Definition: The word 'Ephesians' in Greek language means "from" or "of" which indicates that it's a title or heading of a book. In this context, "Ephesians" could be referring to the second Epistle of Paul written to the Ephesian Church. It is possible that you are referring to the book itself and not the specific chapter or section where 'Ephesians' was first mentioned in the Bible. If so, the Bible term 'Ephesians' refers to the entire New Testament of the Christian religion (which includes 109 books) written by Paul who wrote it. The Greek word "Ephesians" is an Old Testament Hebrew term, which translates into English as "from," and means "God's people." It appears in the first part of the book of Ephesians (first chapter), where Paul gives instructions to his readers about what they should do. He encourages them to worship God and follow him in faith. The Bible uses the term 'Ephesians' many times, but it is not often used as a specific chapter or section. The word "Epistles" are addressed to people who were initially included in the community of believers at Ephesus. However, it would be more accurate to say that Ephesians is the title or heading of an entire book.