Who are my mother and my brothers?" he asked. Then he looked at those seated in a circle around him and said, "Here are my mother and my brothers! Whoever does God's will is my brother and sister and mother."
Mark 3:33-35
Put on the full armor of God, so that you will be able to stand firm against the schemes of the devil. For our struggle is not against flesh and blood, but against the rulers, against the powers, against the world forces of this darkness, against the spiritual forces of wickedness in the heavenly places.
Ephesians 6:11-12