'Concerning' in the Bible

But he did not doubt or waver in unbelief concerning the promise of God, but he grew strong and empowered by faith, giving glory to God,

For the married woman [as an example] is bound and remains bound by law to her husband while he lives; but if her husband dies, she is released and exempt from the law concerning her husband.

In Christ Jesus, then, I have found [legitimate] reason for boasting in things related [to my service] to God.

I urge you, brothers and sisters, to keep your eyes on those who cause dissensions and create obstacles or introduce temptations [for others] to commit sin, [acting in ways] contrary to the doctrine which you have learned. Turn away from them.

Now to Him who is able to establish and strengthen you [in the faith] according to my gospel and the preaching of Jesus Christ, according to the revelation of the mystery [of the plan of salvation] which has been kept secret for long ages past,