When Jesus was born the Gospel of Luke mentions two groups in particular that were present: shepherds who protected their flocks by night, and angelic armies sent from God on high. Both groups, in their own way, are powerful images of truth. Truth is not ideas. Truth, Divine Truth, is the Divine power that protects all goodness. Just as shepherds protect their sheep and angelic armies protect the heavens, truth, when lived, protects against all the forces of hell.