The Laxdaela Saga, tr. by Muriel Press, [1899], at sacred-texts.com
Kalf Asgeirson went to see Kjartan and asks what he was minded to do that summer. Kjartan said, "I have been thinking chiefly that we had better take our ship to England, where there is a good market for Christian men. But first I will go and see the king before I settle this, for he did not seem pleased at my going on this journey when we talked about it in the spring."
Then Kalf went away and Kjartan went to speak to the king, greeting him courteously. The king received him most kindly, and asked what he and his companion (Kalf) had been talking about. Kjartan told what they had mostly in mind to do, but said that his errand to the king was to beg leave to go on this journey. "As to that matter, I will give you your choice, Kjartan. Either you will go to Iceland this summer, and bring men to Christianity by force or by expedients; but if you think this too difficult a journey, I will not let you go away on any account, for you are much better suited to serve noble men than to turn here into a chapman."
Kjartan chose rather to stay with the king than to go to Iceland and preach the faith to them there, and said he could not be contending by force against his own kindred. "Moreover, it would be more likely that my father and other chiefs, who are near kinsmen of mine, would go against thy will with all the less stubbornness the better beholden I am under your power."
The king said, "This is chosen both wisely and as beseems a great man."
The king gave Kjartan a whole set of new clothes, all cut out of scarlet cloth, and they suited him well; for people said that King Olaf and Kjartan were of an even height when they went under measure. King Olaf sent the court priest, named Thangbrand, to Iceland. He brought his ship to Swanfirth, and stayed with Side- Hall all the winter at Wash-river, and set forth the faith to people both with fair words and harsh punishments. Thangbrand slew two men who went most against him. Hall received the faith in the spring, and was baptized on the Saturday before Easter, with all his household; then Gizor the White let himself be baptized, so did Hjalti Skeggjason and many other chiefs, though there were many more who spoke against it; and then dealings between heathen men and Christians became scarcely free of danger. Sundry chiefs even took counsel together to slay Thangbrand, as well as such men who should stand up for him. Because of this turmoil Thangbrand ran away to Norway, and came to meet King Olaf, and told him the tidings of what had befallen in his journey, and said he thought Christianity would never thrive in Iceland. The king was very wroth at this, and said that many Icelanders would rue the day unless they came round to him. That summer Hjalti Skeggjason was made an outlaw at the Thing for blaspheming the gods. Runolf Ulfson, who lived in Dale, under Isles'-fells, the greatest of chieftains, upheld the lawsuit against him. That summer Gizor left Iceland and Hjalti with him, and they came to Norway, and went forthwith to find King Olaf. The king gave them a good welcome, and said they had taken a wise counsel; he bade them stay with him, and that offer they took with thanks. Sverting, son of Runolf of Dale, had been in Norway that winter, and was bound for Iceland in the summer. His ship was floating beside the landing stage all ready, only waiting for a wind. The king forbade him to go away, and said that no ships should go to Iceland that summer. Sverting went to the king and pleaded his case, and begged leave to go, and said it mattered a great deal to him, that they should not have to unship their cargo again. The king spake, and then he was wroth: "It is well for the son of a sacrificer to be where he likes it worst."
So Sverting went no whither. That winter nothing to tell of befell. The next summer the king sent Gizor and Hjalti Skeggjason to Iceland to preach the faith anew, and kept four men back as hostages, Kjartan Olafson, Halldor, the son of Gudmund the Mighty, Kolbein, son of Thord the priest of Frey, and Sverting, son of Runolf of Dale. Bolli made up his mind to journey with Gizor and Hjalti, and went to Kjartan, his kinsman, and said, "I am now ready to depart; I should wait for you through the next winter, if next summer you were more free to go away than you are now. But I cannot help thinking that the king will on no account let you go free. I also take it to be the truth that you yourself call to mind but few of the things that afford pastime in Iceland when you sit talking to Ingibjorg, the king's sister."
She was at the court of King Olaf, and the most beautiful of all the women who were at that time in the land. Kjartan said, "Do not say such things, but bear my greeting to both my kinsfolk and friends."