Jeremy L. Berg

“At first a man engages in some forbidden pleasure because he wants to do so; in the end he engages in it because he cannot help doing so. Once a thing becomes a habit it is not far from being a necessity. When a man has allowed some habit, some indulgence, some forbidden practice to master him, he becomes its slave. As the old saying has it, ‘Sow an act and reap a habit; sow a habit and reap a character; sow a character and reap a destiny.'”

-William Barclay, on Ephesians 2:1-3 in The Daily Study Bible Series: Galatians and Ephesians, p. 98