[John] MacArthur was speaking on the pursuit of godly life.

“There were some things that settled into my heart very early into my life and ministry…”

“The two most dominant realities that captivated my heart very early in my Christian experience were the authority of Scripture and the necessity of holiness…”

“How do I get deeper than I am, far deeper than I am. I asked the Lord to show me,” he said in the beginning of the sermon.

He added that initially he read books by mystics to find out if there was a secret to living a Godly life, but he was soon directed to the Scriptures. (Online source)

See also:

MAINSTREAM EVANGELICALISM EMBRACING CONTEMPLATIVE MYSTICISM

IN TOUCH MAGAZINE OF CHARLES STANLEY PROMOTING CONTEMPLATIVE NEW MONASTICISM

MARK DRISCOLL AND NEO-REFORMED NEW CALVINIST CONTEMPLATIVE SPIRITUALITY