End of St Mark's
Gospel from the Codex Sinaiticus - a fourth-century Greek manuscript found on Mount Sinai, in St. Catherine's Monastery, by Constantine Tischendorf in 1844
John is one of the few characters whose life was the subject of prophecy hundreds of years before he was born. In Luke 3:3–6 we read that his ministry fulfilled the passage in Isaiah 40:3–5 of one who would come to prepare the way of the Lord specifically by preaching in desert places.
Luke is very much a background character in the New Testament. Even though he wrote a gospel and the book of Acts, Luke deliberately switches the attention of the reader away from himself and on to others.
Mary and Martha go together like chalk and cheese. Although they are sisters, and usually appear together in the Bible, its authors often draw attention to their differences rather than their similarities.