Monotheism is the belief in one God, and ethical monotheism in the belief that our ethics or morality comes from this God.
It is important, as this is the prodominant view of Christians, Muslims and Jews, and as such influenced the behaviour of a big part of human population. It also means that people's morality can be influenced by religious leaders, who claim they know what pleases this God.
2.coming together i think
Answer is : ♦D. cave walls♦
<span>"After a period of conflict, Christianity was made the official religion of the Roman Empire so as to unite and reinforce it. Both state and church each had their own, sometimes overlapping, spheres of influence over people, one temporal and the other spiritual." (I really hope this helps good luck.)</span>