Henry Scougal, the Professor of Divinity at Aberdeen University who died in 1657 at age 27, penned the following prayer at the end of his classic book The Life of God in the Soul of Man:
“Fill our souls with such a deep sense, and full persuasion of those great truths which thou has revealed in the gospel, as may influence and regulate our whole conversation, and that the life which we henceforth live in the flesh, we may live through faith in the Son of God.” (p. 134)
Notice the prayer is not merely for persuasion of the truth of the Gospel, but for a deep sense of that persuasion.
Pray for your own heart, that you not only know the Gospel, but feel the Gospel. Then pray the same for others.