'Concerning' in the Bible

But concerning the one who lacks such things -- he is blind. That is to say, he is nearsighted, since he has forgotten about the cleansing of his past sins.

Wherefore, I will not be careless always to remind you concerning these things, though, having known them, and having been established in the present truth,

The Lord is not slack concerning his promise, as some men count slackness; but is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance.

as also in all the epistles, speaking in them concerning these things, among which things are certain hard to be understood, which the untaught and unstable do wrest, as also the other Writings, unto their own destruction.