The testimony — By the testimony and the law or doctrine, he understands one and the same thing, as he doth also, Isaiah 8:20, the word of God, and especially that which is the main scope thereof, the doctrine of the Messiah, which, though now professed by all the Israelites, shall be disowned by the generality of them, when the Messiah shall come. Bind up and seal are to be understood prophetically, declare and prophesy, that it shall be bound up and sealed. Moreover, bind up and seal, design the same thing. Security and secrecy, signifying, that it should certainly be fulfilled, yet withal kept secret from the unbelieving Jews. By the disciples he means those who were taught of God.
Related Commentaries of Isaiah 8:16
Isaiah 8:16
16 Bind up the testimony, seal the law among my disciples.