Let not see my black and deep desires. Blind to the hands deeds yet let that be which the eye fears
Act 1 Scene 4 (Macbeth) is when Macbeth discovers his prophecy. 3 witches appear and tell Macbeth he is going to be the Thane of Cawdor then king. Ross and Angus enter and fulfill the witches prophecy.
Line 48-53 Act 1 scene 4: Macbeth has just learned that the King will put Malcolm heir to the throne. In jealousy and in fear of his throne, Macbeth goes to the side (facing the audience) and begins with plotting the murder of the king and his son.
Act 2 scene 2 ( line 14 and lines 52-57) Macbeth Kills Duncan and frames the chamberlains/guards with the bloody daggers.