And what is funny is their quoting of the letter to Timothy — as if they fire “elders” or “pastors” who are bachelors or widowed or divorced.
The verse does not specify whether the wife has to be living or not. But certainly, if an overseer or deacon is getting a divorce, he should be promptly removed from the position as he has disqualified himself from office simply by virtue of the fact that he has shown that he is not able to keep his own house in order.
As far as a man who was divorced before his conversion, there is no small amount of debate about that but I am not familiar with each particular denomination's position. If you want to know, go find out yourself.
And St. Paul in his letters to Timothy and Titus refers to the laying on of hands — priests and then Bishops of their area in those days.