Answer:
I don't know if there is supposed to be any options for this question, but I think I can answer anyways. In this excerpt, the word natural is used to describe people who has not been touched by the grace of God.
Step-by-step explanation:
According to this excerpt, people who live outside the grace of God are natural. They didn't follow God's will and are "held" in his hand "over the pit of hell, they have deserved the fiery pit, and are already sentenced to it;" These people provoke God, they live without His presence in their lives.