He may be a servant for the church, but when he is not supported he is not a servant of the church. It is the responsibility of evangelists to give this much needed teaching. Usually such remarks as these are heard only in private when two or three preachers get together. The motives of the evangelist may be impugned, but he will stand condemned before God for failure to give these instructions. Some are making a bank out of the church of our Lord.
Congregations have an obligation to support evangelists.
In this matter we should consider the New Testament example of sending the assistance direct to the worker. There is no Bible authority for an evangelist's home congregation acting as a centralized agency for receiving funds for him. In the early church they always sent the money direct to the worker or where the funds were needed. Evangelists who cannot be trusted to make proper use of the money received, should not be in the field. If he is not trustworthy he should not be recommended for this great work of preaching the gospel.