The power of prayer - Prayer is one of the most powerful weapons God has given us. Prayer is a conversation with God.

Elisha dealt with his servant’s fear: (a) by a demonstration of personal concern through a word of encouragement, “Do not fear,” (b) by biblical instruction designed to give a reason why he should not fear, “for those who are with us are more than those who are with them,” and (c) by prayer for the servant’s illumination. Refer to "Bible.org"