'Let Us' in the Bible

Do we then conclude thus, let us continue in sin, that the divine favour may be more fully display'd?

the night is far spent, the day is at hand: let us therefore throw off the habits of darkness, and be invested with the ornaments of light.

let us behave with decency as in open view; not with rioting and drunkenness, not with lewdness and brutality, not with strife and envy.

let us not judge one another any more: but rather come to this determination, not to put a stumbling-block, or any thing in a brother's way, that may make him fall.

Let us therefore pursue those things which tend to peace, and mutual edification.