God's gracious visits usually meet us in the way of duty; and to those who use what they have for others' benefit, more shall be given. This interview with Christ was unexpected; but Christ was nigh them, and still is nigh us in the word.
The salutation speaks the good-will of Christ to man, even since he entered upon his state of exaltation. It is the will of Christ that his people should be a cheerful, joyful people, and his resurrection furnishes abundant matter for joy.
Be not afraid. Christ rose from the dead, to silence his people's fears, and there is enough in that to silence them. The disciples had just before shamefully deserted him in his sufferings; but, to show that he could forgive, and to teach us to do so, he calls them brethren.
Notwithstanding his majesty and purity, and our meanness and unworthiness, he still condescends to call believers his brethren.