Ignorance of spiritual laws – is one of many things that cause suffering in this world nowadays
«Brothers, my heart’s desire and my prayer to God is for Israel, that they may be saved. For I testify about them that they have a zeal for God, but not according to knowledge. For being ignorant of God’s righteousness, and seeking to establish their own righteousness, they didn’t subject themselves to the righteousness of God. For Christ is the fulfilment of the law for righteousness to everyone who believes.» (Romans 10:1-4).
Today may people are saying they love God and believe in Him, while staying ignorant to His righteousness and living according to their own righteousness. Therefore, they blame God for being unjust to them when facing problems and distress in their life.