Word: concerning in 1 Thessalonians

And sent Timotheus, our brother, and minister of God, and our fellowlabourer in the gospel of Christ, to establish you, and to comfort you concerning your faith:

1 Thessalonians 4:13

But I would not have you to be ignorant, brethren, concerning them which are asleep, that ye sorrow not, even as others which have no hope.

1 Thessalonians 5:18

In every thing give thanks: for this is the will of God in Christ Jesus concerning you.