> Sannspurðan hefi eg fjandskap Haralds konungs til vor.
> I have truly-learnt (?) (the) enmity of King Haraldr towards us.

MM & HP: "I have reliable reports of King Harald's hostility towards us."

> Eg vil gera að dæmum göfugra manna
> I want to do according-to (the) judgements of noble men

"I want to follow the example (dœmi, dat.pl., Z7) of noble men (gen.pl.)".