'Revelation' in the Bible

so that you come behind in no gift; waiting for the revelation of our Lord Jesus Christ;

But now, brothers, if I come to you speaking with other languages, what would I profit you, unless I speak to you either by way of revelation, or of knowledge, or of prophesying, or of teaching?

What is it then, brothers? When you come together, each one of you has a psalm, has a teaching, has a revelation, has another language, has an interpretation. Let all things be done to build each other up.

But if a revelation is made to another sitting by, let the first keep silent.