In my experience, anyone who says "God told me," is either lying or deluded. This goes for so-called Baptists, too.
Stanley's governing principle expressed in the video, which he got from his Pentecostal grandfather, is wholly unbiblical. If you are right with God in your heart, and you're doing what God called you to do, then you keep doing what He called you to do until He tells you to do something else.
Man, that sounds all good and holy, but he's not talking about the clear commands of Scripture. He's talking about what he and others imagine God is telling them to do.
What is it that we are called of God to do? We are called to follow Christ. We are all called to take His yoke upon us and to learn of Him. That means we are to obey His commandments as they were delivered to us by the Apostles. Not what we feel or imagine God may be saying. The Holy Spirit gets blamed for a lot He had nothing to do with.
And the gifts and calling of God are without repentance. Even through our periods of weakness and rebellion.
But no one is called to an office. What do the Scriptures say? If a man desire the office of a bishop, he desireth a good work. And he may serve in that capacity as long as he meets the qualifications.
I hate to burst the bubble of the men o' Gawd, but no one is called to the pastorate. That's something that you want to do, no doubt in good faith and from a pure heart. But it's still something you want to do, not what God has called you to do, and the moment you slip up and break faith, your term has ended, permanently.
In Stanley's case, it may be that since it was the wife that sought the divorce, that he is still technically qualified. And if he had argued that point from Scripture, his argument might have had some merit. But that's not the premise he argued from. He is saying that to step down from the pulpit would be disobedience to God, because God called him to preach, and hasn't told him to do anything else.
I think if he had argued from the Scriptures, that he is still technically qualified, his desire to remain in office would be revealed to be more self will than God's will. Who would advise someone to neglect his family for the sake of his "ministry"? His family is his ministry.
Legalism might say he's qualified, but the Spirit would have him look to his own house.