These are the generations of Noah: Noah was a just man and perfect in his generations, and Noah walked with God.
These are the generations of Noah - (see the note at Genesis 2:4.) This is the commencement of a Parashah (new section), indicated in the Hebrew Bible by the letter pe (p), and extending to Genesis 11:32.
Noah was a just man, and perfect in his generations - i:e., among his wicked contemporaries. (The Hebrew word is different from that rendered "generations" in the previous clause.) He was not absolutely just and perfect; because, since the fall of Adam, no man has been free from sin except Jesus Christ. But as living by faith He was just (Galatians 3:2; Hebrews 11:7) and "perfect" - i:e., sincere in his desire to do God's will.
Walked with God. The phrase, which is applied only to this patriarch and to Enoch, may denote both his habitual piety and his character as "a preacher of righteousness" (2 Peter 2:5). What an awful state of things, when only one man or one family of piety and virtue was now existing among the professed sons of God! It is believed that Methuselah died in the year of the flood, and many others may have been believers, or brought to a late repentance, whose names have not been recorded.