'Have Fellowship With' in the Bible

But I say, that the things which the Gentiles sacrifice, they sacrifice to devils, and not to God: and I would not that ye should have fellowship with devils.

That which we have seen and heard declare we unto you, that ye also may have fellowship with us: and truly our fellowship is with the Father, and with his Son Jesus Christ.

If we say that we have fellowship with him, and walk in darkness, we lie, and do not the truth: