There’s No Such (Biblical) Thing As ‘Lay Preaching’
Sharing the Gospel is not ‘preaching’ in the biblical sense. Yet, too often, it is assumed and called that, when in actuality, it is nothing more than a rejection of pastoral authority. Preaching involves being called of God for the office, being set apart by the Church and sent for that specific purpose.
To assume the role of preacher is to assume authority from God and the Church. Be very careful what you assume, brethren.
The Case Against ‘Lay Preachers’ by Martin Lloyd-Jones: