By faith Noah, being warned by God concerning events as yet unseen, in reverent fear constructed an ark for the saving of his household. By this he condemned the world and became an heir of the righteousness that comes by faith?
The Faith of Abel, Enoch, Noah
…6 And without faith it is impossible to please God, because anyone who approaches Him must believe that He exists and that He rewards those who earnestly seek Him.
7 By faith Noah, when warned about things not yet seen, in godly fear built an ark to save his family. By faith he condemned the world and became heir of the righteousness that comes by faith.
8 By faith Abraham, when called to go to a place he would later receive as his inheritance, obeyed and went, without knowing where he was going.… Berean Study Bible
11:4-7 Here follow some illustrious examples of faith from the Old Testament. Abel brought a sacrifice of atonement from the firstlings of the flock, acknowledging himself a sinner who deserved to die, and only hoping for mercy through the great Sacrifice. Cain's proud rage and enmity against the accepted worshipper of God, led to the awful effects the same principles have produced in every age; the cruel persecution, and even murder of believers. By faith Abel, being dead, yet speaketh; he left an instructive and speaking example. Enoch was translated, or removed, that he should not see death; God took him into heaven, as Christ will do the saints who shall be alive at his second coming. We cannot come to God, unless we believe that he is what he has revealed himself to be in the Scripture. Those who would find God, must seek him with all their heart. Noah's faith influenced his practice; it moved him to prepare an ark. His faith condemned the unbelief of others; and his obedience condemned their contempt and rebellion. Good examples either convert sinners or condemn them. This shows how believers, being warned of God to flee from the wrath to come, are moved with fear, take refuge in Christ, and become heirs of the righteousness of faith.