Why did the patriarch Job offer burnt offerings?

Answer

"And his sons went and feasted in their houses, every one his day; and sent and called for their three sisters
to eat and to drink with them. And it was so, when the days of their feasting were gone about, that Job sent
and sanctified them, and rose up early in the morning, and offered burnt offerings according to the number
of them all: for Job said, It may be that my sons have sinned, and cursed God in their hearts. Thus did Job
continually." Job 1: 4, 5.

By whom was this fulfilled?
How has God revealed to us the hidden things of the kingdom?
Why did God reprove Eli?
How universal is the worship of this power to become?
What is the character of this new power?
What takes place under the seventh plague?
What will then he the condition of all the earth?

Questions & Answers are from the book Bible Readings for the Home Circle