So here your catechism question is, what is heaven? The answer is, a glorious and happy place where the righteous shall be forever with the Lord. And in determining or understanding what heaven is, the two most important words in your answer are righteous and Lord. Heaven is what the righteous receive because the righteous are not righteous in themselves, they're righteous in the Lord Jesus. They receive according to what Jesus deserves, just like Jesus on the cross received according to what we deserve. And what Jesus deserves is the full enjoyment of the glory of God forever. The Lord himself, is the heavenliness of heaven. The Lord is what Jesus deserves. The Lord is what those who are righteous in Jesus, therefore, receive. And therefore, it is a glorious and happy place. The Lord is the glory of the place. The Lord is the blessedness or the happiness of the place. And since Jesus's worthiness and what Jesus deserves is infinite and unlimited, it must be forever and ever. So what is heaven? Heaven is a glorious and happy place where the righteous shall be forever with the Lord.