"Thou marshall'st me the way that I was going"
Macbeth now accepts the dagger as an omen. Marshall in this context means "to guide or usher," so that Macbeth is saying, "you seem to guide me where I was already headed." This reads both literally (i.e., the dagger is guiding him toward Duncan's chambers) and figuratively (i.e., the dagger is a call for him to stop debating).
Macbeth now accepts the dagger as an omen. Marshall in this context means "to guide or usher," so that Macbeth is saying, "you seem to guide me where I was already headed." This reads both literally (i.e., the dagger is guiding him toward Duncan's chambers) and figuratively (i.e., the dagger is a call for him to stop debating).