His master replied, 'Well done, good and faithful servant! You have been faithful with a few things; I will put you in charge of many things. Come and share your master's happiness!'"
— Matthew 25:21

God says to his faithful servant, "Come and share your master's happiness." Notice that God is said to be happy. He has a happiness within Himself, enjoyed within His triune being from eternity before the creation of the universe. He doesn't create happiness out of nothing and export it to us. Rather, He invites us to enter into a happiness He already enjoys!
— Randy Alcorn