Peter was referring to Noah’s constructing of the ark. The ark provided undeniable visible evidence that Noah was devoted to the doing of God’s will. Noah faithfully fulfilled the work assignment that Jehovah had given him. Yes, visible acts of faith led to the preservation of Noah and his family through the Flood. Just as the ark amounted to evidence of Noah’s faith, baptism before onlookers provides visible evidence. It shows that a Christian disciple has dedicated himself to Jehovah on the basis of faith in Christ. Like Noah, dedicated disciples obediently carry on in the work that God has assigned them to do. Just as Noah was preserved through the Flood, loyal baptized ones will be preserved when the present wicked world meets its end. (Mark 13:10; Rev. 7:9, 10) This makes dedication and baptism very important. A person who needlessly delays getting baptized endangers his prospects for everlasting life. w18.03 4 ¶3-4