'Lord' in the Bible

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

[because I] hear about your love and faith which you have toward the Lord Jesus and for all the saints.

no longer as a slave, but more than a slave, a beloved brother, especially to me, but how much more to you, both in the flesh and in the Lord.

Yes, brother, I ought to have some benefit of you in the Lord; refresh my heart in Christ.

The grace of the Lord Jesus Christ [be] with your spirit.