isaiah 48:16 Come ye near unto me, hear ye this; I have not spoken in secret from the beginning; from the time that it was, there am I: and now the Lord GOD, and his Spirit, hath sent me. - Free Bible Online

      16. not . . . in secret-- (Isa 45:19). Jehovah foretold Cyrus' advent, not with the studied ambiguity of heathen oracles, but plainly.
      from the time, &c.--From the moment that the purpose began to be accomplished in the raising up of Cyrus I was present.
      sent me--The prophet here speaks, claiming attention to his announcement as to Cyrus, on the ground of his mission from God and His Spirit. But he speaks not in his own person so much as in that of Messiah, to whom alone in the fullest sense the words apply (Isa 61:1; Joh 10:36). Plainly, Isa 49:1, which is the continuation of the forty-eighth chapter, from Isa 48:16, where the change of speaker from God (Isa 48:1, 12-15) begins, is the language of Messiah. Lu 4:1, 14, 18, shows that the Spirit combined with the Father in sending the Son: therefore "His Spirit" is nominative to "sent," not accusative, following it.

JFB.