Believe and Obey

"Only he who believes is obedient, and only he who is obedient believes... "only those who believe obey" is what we say to that part of a believer's soul which obeys, and "only those who obey believe" is what we say to that part of the soul of the obedient which believes. If the first half of the proposition stands alone, the believer is exposed to the danger of cheap grace, which is another word for damnation. If the second half stands alone, the believer is exposed to the danger of salvation through works, which is also another word for damnation." —Dietrich Bonhoeffer (1906–1945)

Excerpt taken from The Cost Of Discipleship by Dietrich Bonhoeffer, SCM Press Ltd. published 1959, p. 63 & 68