Hast thou marked the old way which wicked men have trodden?
Marked - rather, Dost thou keep to? i:e., wish to follow (so Hebrew, 2 Samuel 22:22). If so, beware of sharing their end.
The old way - the degenerate ways of the world before the flood (Genesis 6:5, "The Wickedness of man was great in the earth, and every imagination of the thoughts of his heart was only evil continually").