How do we know that God's promises about the beautiful city of God are true?

The assurance of God's promises concerning the city of God is made evident through His faithfulness as revealed in Scripture. In Psalm 48:8, it declares, 'As we have heard, so have we seen in the city of the Lord.' This verse indicates that the promises of God are not merely words but are experienced realities for believers. Throughout Scripture, God speaks of His covenant faithfulness, illustrating that He will establish Zion forever. Moreover, in Isaiah 26:1-3, it is written, 'Salvation will God appoint for walls and bulwarks.' This suggests that God’s commitment to protect and secure His people in Zion is unwavering. The testimonies of believers throughout history further affirm that God's Word is sure and steadfast, nourishing the hope of the glorious city yet to come.