Your tagline is excellent advice for these times.
So...
We are on guard (guarding our hearts and minds against evil)
We stand firm in the faith (trusting in God and His purposes)
We are of good courage and strong (God has given us a Spirit not of fear, but of power, love and self-control)
Why do we honor love, even in this corrupted world where we must be on guard? Because - there is no fear in love, but perfect love casts out fear.
Love begets courage!