1 She was right joyous of her just request,
right joyous of > very delighted by just > righteous; proper
2 And, taking by the hand that Faery's son, 3 Gan him instruct in every good behest
Gan > Did; began to behest > injunction (esp. of a religious nature)
4 Of love and righteousness, and well to do,
well > good
5 And wrath and hatred warely to shun,
warely > vigilantly, cautiously
6 That drew on men God's hatred, and His wrath, 7 And many souls in dolours had fordone:
dolours > sorrows, griefs fordone > utterly ruined