'Lord' in the Bible

Grace and peace to you from God the Father and our Lord Jesus Christ,

I am confident in the Lord that you will accept no other view. But the one who is confusing you will pay the penalty, whoever he may be.

But may I never boast except in the cross of our Lord Jesus Christ, through which the world has been crucified to me, and I to the world.

The grace of our Lord Jesus Christ be with your spirit, brothers and sisters. Amen.