How do we know God's promises of comfort are true?

The truth of God's promises of comfort can be found throughout Scripture, particularly in Isaiah's prophecies where God reassures His people of His abiding faithfulness. In Isaiah 51:3, the Lord's declaration that He will comfort Zion illustrates His commitment to restore and rejuvenate His people. We see this promise fulfilled ultimately in Christ, who came to comfort us through His life, death, and resurrection. By looking at the history of God's dealings with His people, we see a pattern of faithfulness that assures us that His promises will always come to pass. Jesus Himself, as the comforter and mediator of the new covenant, affirms that God’s promises are as certain as His character.