to the end he may establish your hearts blameless in holiness before our God and Father, at the coming of our Lord Jesus with all his saints.
with all his saints: The mention of holiness brings to mind the saints who will accompany the Lord at His second advent. Holiness and saints are cognates, both of which refer to persons completely set apart for service to God. Our Lord’s saintly companions are not identified. We are told elsewhere that angels will be in that glorious train (2 Thessalonians 1:7-9). Angels are not identified as saints in any other New Testament passage, so we cannot be sure if they are referred to here or if Paul is speaking of certain Old or New Testament worthies. Regardless of our inability to identify the participants, we may say with the song writer, "What a day, glorious day, that will be."