Esias 53:7

7 And he, because of his affliction, opens not his mouth: he was led as a sheep to the slaughter, and as a lamb before the shearer is dumb, so he opens not his mouth.

Esias 53:7 In-Context

5 But he was wounded on account of our sins, and was bruised because of our iniquities: the chastisement of our peace was upon him; by his bruises we were healed.
6 All we as sheep have gone astray; every one has gone astray in his way; and the Lord gave him up for our sins.
7 And he, because of his affliction, opens not his mouth: he was led as a sheep to the slaughter, and as a lamb before the shearer is dumb, so he opens not his mouth.
8 In humiliation his judgment was taken away: who shall declare his generation? for his life is taken away from the earth: because of the iniquities of my people he was led to death.
9 And I will give the wicked for his burial, and the rich for his death; for he practised no iniquity, nor craft with his mouth.

The Brenton translation of the Septuagint is in the public domain.