P1: Unclear, but I think it's basically saying there is much to say about all that happened to him.
[Edit: the more I stare at it, the more sense it makes. "There is much to say about all that ? was wrought on me, ???. I shall never forget it, not while I live!"]
P2: Unexpectedly, a woman ("uuif", wife) appeared at "great speed" to save him. "She came in among the evil men..."
P3: "She slaughtered the heathen men that pinned me, slaughtered them and felled them to the ground. There was blood and bale enough and the fallen lay still, for [they could no more?] stand. As for the Maister, the [wrathe?] Maister, he fled away in the darkness and was seen no more."
P4: The protagonist thanks the woman for saving him, "I thank thee..."
On first reading, I didn't know what "uuif" was. I had to look that one up.