Final answer:
The lines in question are spoken by Macbeth in Act 2, Scene 4 of William Shakespeare's 'Macbeth', in which Macbeth expresses his guilt and inner turmoil through the description of the darkened day.
Step-by-step explanation:
The speaker of the lines "Ha, good father, / Thou seest the heavens, as troubled with man's act, / Threatens his bloody stage. By th' clock 'tis day, / And yet dark night strangles the traveling lamp" is Macbeth. This speech appears in Act 2, Scene 4 of William Shakespeare's tragedy 'Macbeth' where Macbeth is contemplating the bizarre events transpiring in the wake of the murders. He's commenting on the darkness of the day, giving the audience an insight into his troubled conscience and the guilt he feels over his murderous actions.
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