John Gills Exposition of the Bible Commentary - Genesis 6:12
And God looked upon the earth, and, behold, it was corrupt ,.... This is spoken as if he had never looked upon it before; whereas his eyes are always upon the earth, and the inhabitants of it, and upon all their ways and works: but this denotes the special notice he took, and the particular observation he made upon the condition and circumstances the earth, and its inhabitants, were in. And this is remarked, as well as the particle "behold" is used, to denote the certainty of this... read more
Matthew Henry's Complete Commentary - Genesis 6:11-12
The wickedness of that generation is here again spoken of, either as a foil to Noah's piety?he was just and perfect, when all the earth was corrupt; or as a further justification of God's resolution to destroy the world, which he was now about to communicate to his servant Noah. 1. All kinds of sin was found among them, for it is said (Gen. 6:11) that the earth was, (1.) Corrupt before God, that is, in the matters of God's worship; either they had other gods before him, or they worshipped him... read more