Robert Candlish from Studies in Genesis (commenting on Gen. 6:1-22):
When the Lord first fixed the period of his long-suffering patience, and resolved to spare man on the earth for one hundred and twenty years, and no longer—he doubtless intimated this purpose in some way; announcing the destruction coming on all flesh, and giving some public pledge of the grace which Noah found in his eyes. This would be a new call to Noah to labour in his vocation of a teacher of righteousness, as well as a loud alarm to the world at large. Noah obeyed the call;—the world set at naught the alarm. To Noah it was indeed a trying office that was assigned—to testify for God in the midst of such a generation, to whose hatred and jealousy the very token of approbation with which God had honoured him, tended the more to expose him. He became a marked man, the object of scorn and contumely, of injury and insult. The people watched for his halting, and waylaid his path with subtle snares. It was a difficult part he had in these circumstances to perform—a dangerous duty he had to discharge—as he walked humbly with his God and went about warning the ungodly.
Aaron Armstrong is the author of Awaiting a Savior and Contend. He is a writer, speaker, and stereotype Instagrammer. Aaron blogs daily at Blogging Theologically.