God Brings Salvation

The theme of verses 1-9 is God's judgment against other nations through the victory of Judah. The phrase, "on that day," occurs sixteen times in chapters 12-14. It is an abbreviated reference to "the day of the Lord," a phrase often used by the prophets to describe times when God intervenes in history to defeat his enemies and bless his people.

Then in chapter 13:1-6, the phrase "on that day" connects chapter 13 with the mourning over the past of 12:10-13. The metaphor of a fountain indicates the abundance of forgiveness.