Matthew Poole and continuators on Romans 15:13

13. Now the God of hope fill you with all joy and peace in believing , that ye may abound in hope through the power of the holy Ghost .

He finisheth here his long discourse about brotherly love and concord with a short and pithy Prayer.

Having said before, that the Gentiles should hope in God, he takes occasion from hence to stile him, The God of Hope. He is so, both Objective, as being the only Object of our hope, vid. Psal. 146, 5. Ier. 17.7. 1 Tim. 6.17. and Effective, as being the only author of it. 1 Pet. 1.3.

i. e. With much inward Joy and Peace, which riseth in the Heart through a lively Faith in Christ: Or else, with all comfort and concord in the Christian Faith. In this he prayes they may abound: instead of these contentions that had been amongst them, he desires they may be filled with those things, wherein he told them, chap. 14.17. The Kingdom of God consisted.

He doth not say, that you may have hope, but that you may abound therein, that you may arrive to a plerophory or full assurance of hope, as it is in Heb. 6.11. Such hope as may be like an Anchor to the Soul, to keep it safe and steady in the midst of Storms and Tempests. This hope is wrought in us by no less power and vertue than that of the Holy Ghost. See before.