Romans 4:14

If, in order to be heir of the world, it is absolutely necessary to come under the jurisdiction of the law, and consequently to be its faithful observer otherwise what purpose would it serve? it is all over at a stroke both with faith and with the promise: with faith, that is to say, with the hope of that final heritage, since the realization of that expectation would be bound to a condition which sinful man could not execute, the fulfilment of the law, and since faith would thus be deprived of its object (literally, emptied, κεκένωται, from κενός, empty); and next, with the promise itself: for, an impossible condition being attached to it, it would thereby be paralyzed in its effects (κατήργηται). Proof and conclusion, Romans 4:15-16.