Knowing God is Love; yet feeling desperately sad. Why?

I know that God is love and that He is Sovereign then why do I feel so desperately sad today? He has a perfect plan, so why do I find myself weeping at times as I look around me? My joy is in Him. He is my greatest treasure; yet as I love Him more--I cannot help but weep for all those who do not know Him as well as for my nation who is turning their backs on Him. Find out God's answer for your broken heart.