It was comforting to suppose that the stream of life would flow on through time in whatever course God had given it。

参考译文：设想这生命之泉，按照上帝指定的历程，将永远奔流不息，真令人感到欣慰。

重点单词及短语解析如下：

(1)It was comforting to do sth(做某事是 安慰的/令人欣慰的)

(2)suppose that（假定;假设;设想)

(3)the stream of life(生命之泉)

(4)flow on (奔腾不息)

(5)through time (越时空)

(7)in whatever course God had given it 按照上帝指定的历程

A:through time:是穿过时间的意思

B:in whatever course :是按无论什么方式的意思

C:God had given it :按上帝给他的方式向前奔流。

(备注1)：it指代the stream of life)

(备注2):whatever 为连接代词引导宾语从句，在宾语从句作限定词，修饰course, whatever couse作动词直接宾语,give 间接宾语+直接宾语 sth)