Who is in the Covenant?

"In the first place, he denies that the invisible Church is made up of all the elect, and affirms that such of them as have not yet obeyed the outward call of the Church, and are not found in its visible communion, although numbered with the elect of God, cannot be reckoned as members of the invisible Church; and, in the second place, he denies that the invisible Church is made up of the elect only, asserting that those who have ever received grace through the ordinances and communion of the Church, even though they should afterwards fall away and become reprobate, are nevertheless to be accounted true members of the invisible Church of Christ."

Who said this?, and to whom was he referring (esp. in the "second place")?

Hint, although this sounds remarkably similar to a contemporary example, it isn't(it is similar, but it isn't that contemporary example ;-) ).