Calvin on the Necessity of Prayer, Pt. 1
“…We clearly see how destitute and devoid of all good things man is, and how he lacks all aids to salvation. Therefore, if he seeks resources to succor him in his need, he must go outside himself and get them elsewhere….But after we have been instructed by faith to recognize that whatever we need and whatever we lack is in God, and in our Lord Jesus Christ, in whom the Father willed all the fullness of his bounty to abide [cf. Col. 1:19; John 1:16] so that we may all draw from it as from an overflowing spring, it remains for us to seek in him, and in prayers to ask of him, what we have learned to be in him.” Calvin, ‘Institutes of the Christian Religion’, III.xx.1