It’s very common for contemporary Christian preachers to travel around and ask for money. Yet such a practice was literally considered the sign of a “false prophet” by the early church.
The Didache says: “Let every apostle who comes to you be received as the Lord… and when the apostle goes away, let him take nothing but bread until he lodges. If he asks for money, he is a false prophet”
(The Didache is an early Christian text from the 2nd century that was frequently quoted by the early church fathers. It was once considered by many to be a canonical book of the New Testament, for example the 4th century Church historian Eusebius in his Historia Ecclesiastica III, mentions this book as being part of an early canon, alongside The Revelation of John. As the canon grew and developed, the didache was later excluded from most “bibles” although the Ethiopian Coptic Church still accepts this book as part of their Bible.)