What does the Bible say about baptism and salvation?

In 1 Peter 3:21, the apostle Peter relates baptism to the salvation received by Noah and his family in the ark, emphasizing that it is not merely a ritual for removing filth, but represents a profound and sincere appeal for a good conscience toward God. This symbolizes that our salvation is not based on outward actions but is inwardly significant, reflecting a heart that trusts in the redemptive work of Christ. Therefore, understanding baptism in this light reinforces that it serves as a testimony of faith in Jesus whose resurrection guarantees our spiritual transformation.