Mike Bickle discusses leadership lessons from 1 Chronicles 11-12, emphasizing the importance of recognizing the value of others and the need for unity in vision during transitional times. He highlights David's leadership qualities that inspired loyalty and courage among his followers, particularly during periods of great change and challenge. Bickle draws parallels between David's time and the current church landscape, urging leaders to embody characteristics such as mercy, generosity, and the ability to see the nobility in others. He encourages the congregation to respond to God's call with courage and commitment, just as David's mighty men did in their time of transition.