Malcolm

• This tyrant... was once thought honest.'

  The tyrant in reference to Macbeth, and how people used to respect him and equally he would respect others. This shows the audience how much the Witches have changed Macbeth.
• Angels are bright still, though the brightest fell.'


  Malcolm makes it clear that he is past the point of trust, and that nobody not even the brightest can be trusted, linking to Macbeth. This also links to the light versus dark motif, and shows Macbeth's character arc.
• Esteem him as a lamb, being compared with my confineless harms.'


  Is another example of Malcolm testing Macduff's love for Scotland, which works when he finally breaks gushing his full colours. Also links to (biblical) good vs evil in which even the tyrannical Macbeth would be seen as holy when compared to Malcolm. Obviously this is not true.
• Macduff, this noble passion has reconciled my thoughts to thy good and honour.'


  Malcolm can see the patriotism in Macduff, and gains a trust in him which they take into the final battle. Faith is renewed in Malcolm's mind.
• What I am truly is thine, and my poor country's to command.'


  Malcolm gives himself willingly for the cause of his country and eventually takes the throne.