'Concerning' in the Bible

That ye put off concerning the former conversation the old man, which is corrupt according to the deceitful lusts;

giving thanks always concerning all things in the name of our Lord Jesus Christ, to God, even the Father;

This is a great mystery: but I speak concerning Christ and the church.

And that ye may know -- ye also -- the things concerning me -- what I do, all things make known to you shall Tychicus, the beloved brother and faithful ministrant in the Lord,

whom I did send unto you for this very thing, that ye might know the things concerning us, and that he might comfort your hearts.