I will fear no evil.
That's PROTECTION!
Fear itself can have a devastating effect on the sheep in GOD'S household. In today's evil times, protection is needed even in one's thought life. Be vigilant to guard your thoughts. Don't let the voice of today's culture lead you.
Time in His Presence is key.....from care in the day to watch in the night. (Laniak p. 112)
Courage comes from the shepherd's role of protector. It's part of the Good Shepherd's ID. (John 10:11) His sheep know him as he calls them by name. Aloneness disappears, displaced by an abundant life given freely by the "Protecting Shepherd".