In 2 Samuel 2:5 and 1 Kings 2:11, this signifies the Lord's spiritual and celestial church. (Arcana Coelestia 2909[4])

961. Verse 2 (Revelation 16:2). And the first went forth and poured out his vial upon the earth, signifies manifestation of the state of the church in general. This is evident from the signification of "pouring out the vial upon the earth," as being manifestation of the state of the church in general, for "the seven angels" signify manifestation, and "the earth" the church, here as just above n. 960.