Which literary element is most present in the following lines by Artemidorus?

Caesar, beware of Brutus, take heed of Cassius, come not near Casca, have an eye to Cinna, not Trebonius, mark well Metellus Cimber. Decius Brutus loves thee not. Thou hast wronged Ligarius. There is but one mind in all these men, and it is bent against Caesar. If thou beest not immortal, look about you. Security gives way to conspiracy. The mighty gods defend thee!

Archetype
Foreshadowing
Dramatic Irony
Juxtaposition