How do we know the ark symbolizes Christ?

The ark in Noah's story serves as a powerful symbol of Christ, illustrating how He is the means of salvation from divine judgment. Just as the ark contained Noah and preserved him from the flood, so Christ preserves believers from the wrath to come. Within the ark, Noah and the animals were safe and sheltered, which correlates with how believers find refuge in Christ. The specifics of the ark's construction and its unique features, such as one door and one window, further enhance this symbolism as they direct attention to Christ as the singular way to safety and salvation.