The phrase “in that day” links these two chapters (26:1; 27:1, 2, 12, 13) and focuses attention on the glory of God in the promised kingdom (26:15). Knowing that the future is secure in the Lord is an encouragement when you suffer (Rom. 8:18–25; 2 Cor. 5:1–8).
Israel sings to the Lord (26). The proud enemy has been brought down (vv. 5–6), and God has given peace to His people (vv. 3, 12). The city of Jerusalem, where the Redeemer will reign, is strong and righteous after having been weak and defiled; and the nation’s time of tribulation will be ended. This is not something the Jews will do for themselves, for they will be like women in travail who give birth only to wind (vv. 16–18). God will do it, and His people will praise Him for His mercy.
The Lord sings about Israel (27:1–5). In chapter 5, God sang about the failure of the vineyard, Israel. But here the theme is the fruitfulness of the nation and God’s care over it. In that day, the enemy will be defeated (v. 1), and God will gather His people back to their land (vv. 12–13). From Israel, blessings shall flow to the whole world (v. 6).
The Peace of God
When you trust Jesus Christ to save you, your sins are forgiven (Col. 2:13), and you have peace with God (Rom. 5:1). He will never call you into judgment for them (John 5:24; Rom. 8:1). You may also enjoy “the peace of God” in your heart and mind as you pray (Phil. 4:6–7) and fix your mind on Him (Isa. 26:3; Phil. 4:8–9; Col. 3:1ff.). “The peace of God” is not the absence of problems; it is the presence of divine sufficiency in the midst of problems (Isa. 26:4; Phil. 4:13, 19). George Morrison said, “Peace is the possession of adequate resources”; and those resources come from the Lord when you yield heart and mind to Him.