And without faith it is impossible to please God, because anyone who comes to him must believe that he exists and that he rewards those who earnestly seek him.
Hebrews 11:6 NIV
If after all He has done, someone still does not trust that He exists and that He rewards those who seek Him, then God is not pleased with that person. God cannot help and bless the person the way He would like to, and the person will not be able to love God and work for Him as he should. God will reward the believer and faithful person.