The One who calls you is faithful, and He will do it.
24 Faithful is he that hath called you. As he has shewn by his prayer what care he exercised as to the welfare of the Thessalonians, so he now confirms them in an assurance of Divine grace. Observe, however, by what argument he promises them the never-failing aid of God — because he has called them; by which words he means, that when the Lord...
Faithful--to His covenant promises (Joh 10:27-29; Co1 1:9; Co1 10:23; Phi 1:6). he that calleth you--God, the caller of His people, will cause His calling not to fall short of its designed end. do it--preserve and present you blameless at the coming of Christ (Th1 5:23; Rom 8:30; Pe1 5:10).
Verse 24. Faithful is he that calleth you. That is, your sanctification after all depends on him, and as he has begun a work of grace in your hearts, you may depend on his faithfulness to complete it. ; ; .