John Wesley on Genesis 6:9

Noah was a just man - Justified before God by faith in the promised seed; for he was an heir of the righteousness which is by faith, Heb 11:7. He was sanctified, and had right principles and dispositions implanted in him: and he was righteous in his conversation, one that made conscience of rendering to all their due, to God his due, and to men theirs. And he walked with God as Enoch had done before him: in his generation, even in that corrupt degenerate age. It is easy to be religious when religion is in fashion; but it is an evidence of strong faith to swim against the stream, and to appear for God, when no one else appears for him: so Noah did, and it is upon record to his immortal honour.