There was nothing unusual in the final epistle to indicate why the correspondence abruptly ended.
Some consider the Epistle of James to be the New Testament version of the book of Proverbs.
The relationship, both literary and theological, between the epistle to the Ephesians and that to the Colossians is very close.
In the intervening body of the epistle the writer also follows the regular form of a letter.
If the latter epistle could be finally established as genuine, or its date fixed, it would give important evidence with regard to Ephesians; but in the present state of discussion we must confine ourselves to pointing out the fact.