Romans 15:30

I beseech you by the love of the Spirit — That is, by the love which is the genuine fruit of the Spirit. To strive together with me in your prayers — He must pray himself, who would have others strive together with him in prayer. Of all the apostles, St. Paul alone is recorded to desire the prayers of the faithful for himself. And this he generally does in the conclusions of his Epistles; yet not without making a difference. For he speaks in one manner to them whom he treats as his children, with the gravity or even severity of a father, such as Timothy, Titus, the Corinthians, and Galatians; in another, to them whom he treats rather like equals, such as the Romans, Ephesians, Thessalonians, Colossians, Hebrews.