the difference between each and every

As adjectives, no difference, but "each" can be used as a noun whereas "every" cannot.

Each used for any or anyone. Every used for everything or everybody i.e. the whole group.

Each is used to sound egalitarian while every used for groups.

I think the question involves the use of phrases like "Each and every one of you. . . ." In other words, why are both words used together if they mean the same. I think it is for added emphasis. I would be interested in your opinion, if this is the context of the opinion.

Roger, emphasis by repetition or by insertion of what are, strictly speaking, redundant words is a widely used rhetorical trick.

Each statement you have made is a lie.

Each and every single solitary statement you have damned well made is a bloody lie!