Esias 52:6

6 Therefore shall my people know my name in that day, for I am he that speaks: I am present,

Esias 52:6 In-Context

4 Thus saith the Lord, My people went down before to Egypt to sojourn there; and were carried away forcibly to the Assyrians.
5 And now why are ye here? Thus saith the Lord, Because my people was taken for nothing, wonder ye and howl. Thus saith the Lord, On account of you my name is continually blasphemed among the Gentiles.
6 Therefore shall my people know my name in that day, for I am he that speaks: I am present,
7 as a season of beauty upon the mountains, as the feet of one preaching glad tidings of peace, as one preaching good news: for I will publish thy salvation, saying, O Sion, thy God shall reign.
8 For the voice of them that guard thee is exalted, and with the voice together they shall rejoice: for eyes shall look to eyes, when the Lord shall have mercy upon Sion.

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