In this Gospel passage, Jesus might be understood as putting suffering in perspective. The disciples of Jesus are called upon to keep their focus on God. Those who can harm the body do not have ultimate power; God does. Still persecution and suffering cannot be avoided or prevented. But Jesus reassures his disciples that God knows and cares about what happens to his children.
We might not face the same type of persecution, but we do experience difficulties as we endeavor to live a Christian life. Sometimes we let the opinions of others prevent us from doing what we know to be right. We need the reminder that what God thinks about us is more important. We are reassured by the promise that God cares for us and protects us.