I suppose that a pure heart is reflected in a singular devotion. I can imagine that single hearted devotion would give us a singular vision in whatever we do. All things would merge into one supreme motive. For the Christian it is to live our lives for the glory of God. I like the way that one brother describes it. “God is most glorified in us when we are most satisfied in Him.”
“To the pure all things are pure.” Titus 1.15 “Conversations Within” ts 5/7/2018
