And said, O man greatly beloved - See the notes at Daniel 9:23.
Fear not - Neither at my presence, nor at what I have to say. There was nothing in the visitation of an angel that could be a ground of dread to a good man; there was nothing in what he had to communicate that could be a reasonable cause of alarm.
Be strong, yea, be strong - These are words of encouragement such as we address to those who are timid and fearful. We exhort them not to yield; to make a vigorous effort to meet danger, difficulty, or trial.
Let my lord speak - That is, I am now prepared to receive what you have to communicate.
For thou hast strengthened me - By your encouraging words, and by the kindness of your manner.