Acts 4:13 Now when they saw the boldness of Peter and John, and perceived that they were uneducated and untrained men, they marveled. And they realized that they had been with Jesus.
I believe the reason we have so many dead churches. We follow the opposite as described in the Bible. We have more ministers who spends more time in doctrine, schools and seminaries than alone time with Jesus. There is no substitute for ministry than the time you spend alone with Jesus.