They say that they shouldn't eat meat sacrificed to idols,

他们不能吃用来拜偶像的肉
they shouldn't eat blood, they shouldn't commit

不可吃血不可私通
fornication or sexual immorality,

不可行淫
so they make some rules that they expect Gentile followers to follow.

他们订了一些规则希望异教的信徒去遵守
They get those rules from the Jewish tradition that these were

这些规则来自犹太传统
the rules that were given to Noah after the flood.

是在大洪水后给诺亚定下的
Therefore, all people in the world, because all people of

因为现世的人都理所当然
course that now exist came from the people who lived through the flood.

是大洪水后的人
All people of the world were given these rules,

规则是给所有人的
even Gentiles, and so even pious Gentiles

异教徒甚至虔诚的异教徒
should keep these rules,

也要遵守这些规则
although they do not have to be circumcised,

虽然他们不用受割礼