cloud upon cloud
‘For you are  my lamp, O Lord, and my God lightens my darkness.’
2 Samuel 22:29 (ESV)
‘Am I in the dark? Then thou, O Lord, wilt lighten my darkness.  Before long things will change.  Affairs may grow more and more dreary, and cloud may be piled upon cloud; but if it grows so dark that I cannot see my own hand, still I shall see the hand of the Lord.  When I cannot find a light within me, or among my friends, or in the whole world, the Lord who said ‘let there be light‘ and there was light, can say the same again.  He will speak me into the sunshine yet.  I shall not die, but live.  They day is already breaking.  This sweet text shines like a morning star.’
Charles Spurgeon – The Chequebook of the Bank of Faith