Ecclesiastes 3:9-14

Do people really gain anything from their work? I saw the hard work God has given people to do. God has given them a desire to know the future. He does everything just right and on time, but people can never completely understand what he is doing. So I realize that the best thing for them is to be happy and enjoy themselves as long as they live. God wants all people to eat and drink and be happy in their work, which are gifts from God. I know that everything God does will continue forever. People cannot add anything to what God has done, and they cannot take anything away from it. God does it this way to make people respect him.