The Apostolic Church recognizes a necessity of a divine call, and quite frankly, it is considered improper and dishonest (characteristics that do not make up a Christ-like individual) for anyone to take upon himself the work and duty of a messenger of Christ without first being divinely called.
No one, no religious organization, or church leader can tell someone that they have been called to any certain ministry. In other words, any applicant for ministry must first know and feel in his/her own heart that he has been called by God.
Therefore, the writing ministry is not altogether a learned profession. And we can call it a profession in that it should carry with it ethics and respect due to the honour of its field. However, the ministry is more than a profession, but a vocation, and that of a sacred calling.
In the words of J.T. Pugh (Author of For Preachers Only):
“It is not a pursuit chosen from among many equally obligatory, but one accepted upon the persuasion and conviction that 'I have been called to preach/write.' While Christ was upon this earth, He selected from a larger group of disciples those who were later to minister the Word, but He did not transfer to them the right of appointing their successors. This prerogative He still retains, and He calls His ministers now, as He did then.”