Answer:
Macbeth feels that all his deeds were done for the sake of Banquo's descendants to be kings.
Step-by-step explanation:
In Act III, Scene I, of "The Tragedy of Macbeth" by William Shakespeare, Macbeth says that although he is the King because he has murdered King Duncan, he is not safe. The witches told him and Banquo that Banquo's descendants would become kings. Macbeth has called two murderers to kill Banquo and his son Fleance to prevent what the witches told would happen. He says these words because he realizes that all he has done is for Banquo's seeds to be kings.