Double, double, toil and trouble; Fire burn, and cauldron bubble.
I will be satisfied. Deny me this, And an eternal curse fall on you!
Macbeth arrives at the witches cave to ask about his fate. They tell him things that make him believe he is safe but they also make him concerned by showing Banquo's son as a king.
The witches start their brew to cause trouble throughout Scotland. This also adds to their mysteriousness and evil.
What, you egg?
I am worse then Macbeth and Scotland would be better with him.
Your problems have solutions. Please return to Scotland to rule.
The murderer hired by Macbeth kills Macduff's son and wife. Macbeth did this to strike back at Macduff for being a traitor and fleeing the country.
Macduff is in England talking to Malcolm trying to get an army to stop Macbeth. Malcolm tests Macduff to whether he is supporting Macbeth or Scotland by saying many negative things about himself. Macduff passes and he agrees to help him.