The direct object comes after the action verb while the subjective complement comes after a linking verb. :)
The purpose of the first paragraph of the Iroquois Constitution is let the readers and all people understand what their goal is. The goal if the constitution is peace. Appointing 5 leaders of the 5 nations great Lords as councils of the constitution.
literal: I know fire
Deeper meaning: this person knows what it's like to be filled with hate and anger, this represents the fire he feels.
4. Folder
6. Grant
Not sure about 5 though