Charles Ellicott Commentary Romans 15:28

"When therefore I have accomplished this, and have sealed to them this fruit, I will go on by you unto Spain." — Romans 15:28 (ASV)

Sealed to them this fruit.—Placed in their hands the sum raised by the collection. This will appear at first sight a somewhat stilted expression, but it takes a certain solemnity from the fact that St. Paul seems to regard this journey to Jerusalem as the close of his own apostolic labours in those parts, the dropping of the curtain, as it were, before a new act in his career.

Will come by you.—Will pass through your city on my way to Spain.