'Known' in the Bible

You are our letter, inscribed on our hearts, known and read by all people,

So then, from now on we know no one {from a human point of view}, if indeed we have known Christ {from a human point of view}, but now we know [him this way] no longer.

as unknown and [yet] known completely, as dying, and behold, we go on living, as disciplined, and [yet] not put to death,

Now we make known to you, brothers, the grace of God that has been given among the churches of Macedonia,

And we have sent at the same time with him the brother whose praise in the gospel [has become known] throughout all the churches.