Grief in 2 Corinthians

Paul's description of the restored Corinthian congregation as "chaste", "holy", and "pure" (agnous) evokes her preparation for a renewed relationship with Israel's God modeled on Isaiah's description of Judah's renewed relationship with YHWH after the Exile (2 Cor 7:11; see also 11:2).  Ultimately, the Corinthian congregation's marital purity signifies their reconciliation with God and presages the abundance of grace to which that relationship will give birth.

Source: Rabbi Jonathan Kaplan  -  "Comfort, O Comfort, Corinth: Grief and Comfort in 2 Corinthians 7:5-13a", Harvard Theological Review, 104:4 (2011), p. 443-444