'Concerning' in the Bible

The rest of Gilead and all Bashan, the kingdom of Og, I gave to the half-tribe of Manasseh, all the region of Argob (concerning all Bashan, it is called the land of Rephaim.

“Indeed, ask now concerning the former days which were before you, since the day that God created man on the earth, and inquire from one end of the heavens to the other. Has anything been done like this great thing, or has anything been heard like it?

and the sign or the wonder comes true, concerning which he spoke to you, saying, ‘Let us go after other gods (whom you have not known) and let us serve them,’