Macbeth 2.3 Interview: Malcolm

In the early morning, a commotion arises as Macduff reveals the murder of Duncan. Malcolm and Donald, Duncan's sons, are advised to stay silent and consider their next steps. Suspicions arise about the guards, and Macbeth claims to have killed them in a fit of loyalty. As tensions rise, Malcolm and Donald decide to flee to England and Ireland for safety, suspecting treachery among those around them. They prepare to leave without saying goodbye, understanding the danger they face as Duncan's heirs.

What does the phrase 'The near in blood, the nearer bloody' imply about Malcolm and his brother's situation?

What is the significance of Malcolm and his brother deciding to leave immediately?