In Isaiah chapters 26 and 27, Isaiah emphasizes the ultimate triumph of God's righteousness over evil. Chapter 26 provides a song of praise and trust in God's unwavering faithfulness. It portrays a future in which those who have been oppressed will experience peace under God's reign. Moreover, it highlights the importance of trusting in God during times of trouble and the ultimate destruction of enemies who oppose His people. In chapter 27, Isaiah presents a beautiful allegory where he describes how God deals with His rebellious people by using metaphors such as vineyards and gardens to depict their punishment and subsequent restoration. This chapter asserts that Israel's restoration depends on genuine repentance from sin, turning away from idolatry, and seeking refuge in God alone. Overall, these chapters serve as crucial reminders of God's sovereignty and his eventual vindication of his faithful followers while warning against forsaking Him for false idols or worldly pleasures.