Could you please elaborate more like the war on poverty in the us or in the world
If you mean the speech to the Virginia Convention, then he builds ethos through religious passion. He portrays himself as a faithful Christian who is fighting for God. The allusion to the Biblical motif of light is the equivalent of fighting for God's truth.
The Divine Right Theory was, in a sense, the European version of the Mandate of Heaven.
Rulers used the Divine Right Theory to justify their rule and decrease overthrow for their rule - basically, it was a religious theory used to justify a rulers rule.
Hope this helps!