1 Thessalonians 5:24
The One who calls you is faithful, and He will do it.
What it says
The One who calls them is faithful, and He will do it.
What it is doing
It anchors the prayer in God's character and action.
In context
23Now may the God of peace Himself sanctify you completely, and may your entire spirit, soul, and body be kept blameless at the coming of our Lord Jesus Christ. 24The One who calls you is faithful, and He will do it. 25Brothers, pray for us as well. 26Greet all the brothers with a holy kiss. 27I charge you before the Lord to have this letter read to all the brothers. 28The grace of our Lord Jesus Christ be with you.