'Concerning' in the Bible

In this way our testimony about Christ was confirmed and established in you,

And when I came to you, brothers and sisters, proclaiming to you the testimony of God [concerning salvation through Christ], I did not come with superiority of speech or of wisdom [no lofty words of eloquence or of philosophy as a Greek orator might do];

So let no one boast in men [about their wisdom, or of having this or that one as a leader]. For all things are yours,

Now concerning the virgins [of marriageable age] I have no command of the Lord, but I give my opinion as one who by the Lord’s mercy is trustworthy.

Now about food sacrificed to idols, we know that we all have knowledge [concerning this]. Knowledge [alone] makes [people self-righteously] arrogant, but love [that unselfishly seeks the best for others] builds up and encourages others to grow [in wisdom].

Now concerning the money collected for [the relief of] the saints [in Jerusalem], you are to do the same as I directed the churches of Galatia to do.