In the parables of Jesus, wedding feasts are mentioned from time to time. The original parable may have ended with the words “invite everyone you can find to the wedding.” The detail of the troops—highly unlikely as an actual part of a wedding invitation(!)— realistically portrays the later destruction of Jerusalem, which Christians did indeed look back upon as punishment precisely for that rejection. The final verse is difficult for us today on a spiritual level. However, it is meant to provoke (re)conversion in a possibly (!) complacent church.
Lord, we know that you love us and invite us to the wedding feast of the Lamb. Help us to respond to your love that we may be followers of your Son not only in name but also in fact.