The battle is not yours
The thing is to count the battle God's. The battle is not yours but God's. We shall not need to fight in this battle. As long as we count our dangers and responsibilities, we shall be distracted with fear.
But when we realize God is bound to take care of us as His property and His representatives, we shall feel infinite relief and security. If I send my employee on a long journey, I am responsible for his expenses and protection; if God sends me anywhere, He is responsible. If we belong to God and put our life, our family, and our all in His hands, we may know He will take care of us.
If our body belongs to God, it is His interest to keep us well, just as much as it is for the interest of the shepherd to have his sheep well fed, well cared for and a credit to him.
Thanks be unto God, which always causeth us to triumph (2 Corinthians 2:14).
Stand up, stand up for Jesus, Stand in His strength alone; The arm of flesh will fail you, Ye dare not trust your own.