'Concerning' in the Bible

This will be the sign to you which will come concerning your two sons, Hophni and Phinehas: on the same day both of them will die.

In that day I will carry out against Eli all that I have spoken concerning his house, from beginning to end.

Samuel said to the cook, “Bring the portion that I gave you, concerning which I said to you, ‘Set it aside.’”

So now, take your stand, that I may plead with you before the Lord concerning all the righteous acts of the Lord which He did for you and your fathers.

And when the Lord does for my lord according to all the good that He has spoken concerning you, and appoints you ruler over Israel,