Blessed are those: This fourth blessing in Revelation (see Revelation 1:3; 14:13; 16:15) confirms the hope of the faithful.
who are invited: God decides who will join.
marriage supper (compare Revelation 19:17): Jesus often used meals to explain the kingdom (Matthew 22:1–13; Luke 14:7–24), and he established a meal for the church (Mark 14:22–25; 1 Corinthians 11:23–26).
These are true words: This promise guarantees the message is trustworthy.