A person asked me the other day, “why a good God let people suffer on earth?” God Himself answers this question in Isaiah 24:5-6 “The earth is defiled by its people; they have disobeyed the laws, violated the statutes and broken the everlasting covenant. 6 Therefore a curse consumes the earth; its people must bear their guilt. Therefore earth’s inhabitants are burned up, and very few are left”.
God is always good. No evil can come from God. He has set some laws and principles for His creation to follow. Whoever obeys and honour those laws of God do not suffer the wickedness of the evil. You suffer because you partially or fully disobey God. The first man (Adam) dishonoured the laws of God thus the earth was cursed (Genesis 3:17). That curse is on everyone who is in the race and stream of Adam. But the curse is broken when a person is transplanted from the tree of Adam to the stream of Christ-Romans 5:19 (life of being born-again).
He enjoys the God given life to its fullness in the purpose of God. He could rejoice always (24/7) no matter what the circumstances are. Because, he is absolutely secured in the mighty hands of a God , who is infinite, who knows the future to the eternity, who could turn the worst in to the best. That person would never say or imagine that he suffers, because the evil plans and works of the devil will be turned to be his best by his Father, the God Almighty (Romans 8:28).