King James Version
And a stone of stumbling, and a rock of offence, even to them which stumble at the word, being disobedient: whereunto also they were appointed.English Standard Version
and "A stone of stumbling, and a rock of offense."They stumble because they disobey the word, as they were destined to do.New International Version
and, "A stone that causes men to stumble and a rock that makes them fall." They stumble because they disobey the message--which is also what they were destined for.