Commenting on Luke 24:50 (“Then he led them out as far as Bethany, and lifting up his hands he blessed them.”), Hendriksen says:
Acts 1:11 “This same Jesus will come back in the same way.”
If, then, he departed while blessing his disciples, and if he is coming again with blessing for his church, does it not follow that even now, during the intervening period, he, as representative of the Triune God, Father, Son, and Holy Spirit, delights in being for his people a source of blessing? Also, that he wants us, in a derived or secondary manner, to be a blessing to everyone with whom we come into contact?
And on Luke 24:51 (“While he blessed them, he parted from them and was carried up into heaven.”):
Matt. 28:20 “I am with you always.”
He departed in order to remain with his church; in fact, now more than ever. When he was still on earth he was not able physically to be everywhere at the same time. But now that he is in heaven he is able, in and through the Holy Spirit, to be everywhere (not bodily, to be sure, but spiritually). Also, while he was still on earth he was present with the church. Now he is present in the church. In other words, he has departed from us in order to draw closer to us.