Isaiah 37:30-32

30And this shall be a sign unto thee, Ye shall eat this year such as groweth of itself; and the second year that which springeth of the same: and in the third year sow ye, and reap, and plant vineyards, and eat the fruit thereof.

31And the remnant that is escaped of the house of Judah shall again take root downward, and bear fruit upward:1

32For out of Jerusalem shall go forth a remnant, and they that escape out of mount Zion: the zeal of the Lord of hosts shall do this.2