John Gills Exposition of the Bible Commentary - Genesis 6:6
And it repented the Lord that he had made man on the earth ,.... Because of the wickedness of man, the wickedness of his heart, and the wickedness of his life and conversation, which was so general, and increased to such a degree, that it was intolerable; wherefore God could have wished, as it were, that he had never made him, since he proved so bad; not that repentance, properly speaking, can fall upon God, for he never changes his mind or alters his purposes, though he sometimes changes... read more
Matthew Henry's Complete Commentary - Genesis 6:6-7
Here is, I. God's resentment of man's wickedness. He did not see it as an unconcerned spectator, but as one injured and affronted by it; he saw it as a tender father sees the folly and stubbornness of a rebellious and disobedient child, which not only angers him, but grieves him, and makes him wish he had been written childless. The expressions here used are very strange: It repented the Lord that he had made man upon the earth, that he had made a creature of such noble powers and faculties,... read more