According to custom, guests had to be introduced to the king by a herald, and thus it is the herald who brings Hrothgar news of Beowulf's arrival. However, it is absolutely clear that Hrothgar is delighted to have Beowulf and his men visit him, as he hopes that Beowulf will help him.
The king is sad and depressed that his kingdom has fallen into such a state of disrepair. He is overjoyed to learn that Beowulf has come to aid.
