“For the kingdom of God is not eating and drinking, but righteousness and peace and joy in the Holy Spirit.” (Romans 14:17) The kingdom of God is (in addition to righteousness and peace) joy in the Holy Spirit!
In the Lord’s prayer, Jesus taught us to pray, “Your kingdom come. Your will be done On earth as it is in heaven.” (Matt. 6:10) If we’re to pray for God’s kingdom to come on earth (Matt. 6:10), and God’s kingdom is joy in the Holy Spirit (Rom. 14:17), then when we pray for God’s kingdom to come on earth, we are also praying for the joy of the Holy Spirit to come on the earth!
“Joy in the Holy Spirit, come on earth as it is in heaven!” Pray that right now.