In an acceptable time. — Literally, in the season of good pleasure. The message is borne in on the soul of the servant as the secret of confidence and strength. It will be his work to be the link in a new covenant with the people, an idea afterwards developed by Jeremiah (Jeremiah 31:31), and reaching its fulfilment in Matthew 26:28; Luke 22:20.
To cause to inherit the desolate heritages. — The prophet may have thought of a literal fulfilment such as was probably in part accomplished by Zerubbabel. We, seeing the prediction in the light of its fulfilment, look to the spiritual inheritance.