When God Pours Out His Spirit

Commenting on Gen. 4:26, Edwards speaks to what begins to happen when God's Spirit moves among men:

We see by experience that a remarkable pouring out of the Spirit of God is always attended with such an effect, namely, a great increase of the performance of the duty of prayer. When the Spirit of God begins or works on men's hearts, [he] immediately sets them to calling on the name of the Lord; as it was with Paul after the Spirit of God had laid hold on him, the the next news is behold he prayeth. So it has been in all remarkable pourings out of the Spirit of God that we have any particular account of in Scripture, and so it is foretold it will be at the great pouring out of the Spirit of God in the latter days. 

 —Jonathan Edwards, A History of the Work of Redemption (ed. John F. Wilson; vol. 21, Works; New Haven: Yale University Press, 1989), 142.