What Jesus is saying is that every excuse for refusing the master’s invitation (Luke 14:15-24) – even the pursuit of religious “excellence” – will make you an outsider to his kingdom. Your religious excellence will not earn you a place at God’s table. Your own efforts will never merit you a seat of honor. The invitation is not Christ plus anything, but Christ alone. Material, moral, or spiritual self-sufficiency is deadly, and it has everlasting consequences.
– Horton, Michael, Ordinary: Sustainable Faith in a Radical, Restless World; Zondervan; copyright 214; Kindle Edition; page 37