Dennis McCallum
Christian leadership involves influencing others. We want to be able to influence people to do God's will, much of which requires a certain level of expertise in order to be effective (witnessing, teaching, discipling, etc.). This means that in the first place, the leader is concerned with the learning process, and how to bring about rapid and permanent learning.
Also, when psychologists refer to learning, they mean not only learning facts about a subject, but learning behaviors. A child must learn to walk, talk, and feed herself. Christians must learn to pray, study, love others, admit sin, etc. The leader not only must demonstrate and explain how these and other things are done, she must also cause the learner to desire to do such things. Learning has occurred when the learner exhibits the learned behavior regularly and without prompting from others.