Matthew 22:8

Then saith he to his servants, The wedding is ready, but they that were bidden were not worthy. Go ye therefore to the partings of the highways, and as many as ye shall find, bid to the marriage feast.

God's purpose is never defeated by sinful men. There will be guests at the wedding feast, even if those first bidden despise it. We have already noted that Christ was praised with Hosannas in the temple (Matthew 21:16), even though the Pharisees would not honor him. Children took up the song they should have sung, and the temple rang with his praises anyway. The king did not cancel the royal wedding because certain invited guests insulted his gracious invitation. The Jewish nation rejected Christ (although not all of them), but the city responsible for it was utterly destroyed, because it was no longer the King's city but, in the words of the parable, "their city." When people reject God's will, even the sacred institutions they had formerly received from God become no longer his, but THEIRS. The true privileges will always go to those willing to receive them. The Gentiles would be called to the feast which the Jews, for the greater part, rejected.