A man is handed a burden larger than himself and told, before he can protest, to be strong. The charge does not wait for him to feel ready. Courage here is a commandment, an instruction to move toward the promised territory precisely when fear counsels retreat. Responsibility arrives whether or not a person is prepared for it.
The promise that someone accompanies him changes the meaning of the task. He is not asked to be adequate alone, only to walk forward with the strength he can summon. That is enough to begin. A person grows into a difficult calling by shouldering it, not by waiting until the fear is gone. Take up the weight, and you become able to carry it.