[Petrosius]

The distinction between agape, philia, eros and store had been known and taught for centuries. (See The Four Loves by C. S. Lewis.) Unfortunately, the English word "love" covers all these Greek concepts

There is a saying that "translators always lie." Sometimes it is not possible to show distinctions in the translation. Then it is necessary to show it in the preaching and instruction.

[achilles2000]

It has been known for centuries. I disagree that it has been taught much in in the US since the beginning of the Second Great Awakening. In my fairly wide denominational and non-denominational experience, the point is seldom made from the pulpit, and when it is there is no lasting impression on the congregation. This one theological failure is a significant source of rot in the Church and, in particular, is largely responsible for weak, sappy evangelicalism.