God has a calling on each man’s life. Furthermore, He enables men to fulfill their appointed work. Man, however, must be strong and DO the work.
Change often results in fear. As such, it must be met with strength. Failure to do so can breed panic that only God's strength can overcome.
During times of battle, believers commonly find themselves to be underdogs. Faith, however, refuses to retreat and trusts God to overcome superior foes.