In 1810, Taylor Coleridge was the first in modern literature to use the phrase “Achilles heel” when he called Ireland “the Achilles heel of the British Empire.” By calling Ireland “the Achilles heel,” Coleridge was saying that the nation was the weakest and most vulnerable part of the United Kingdom.
As we will see in our lesson today in Revelation, the church has an “Achilles heel” too. And it’s one of the essentials components of our Christian faith. It’s our love for one another. But when that love causes us to abandon righteousness and truth, it becomes an “Achilles heel” that the devil can exploit it in order to corrupt the church.