לָכֵ֛ן יֵדַ֥ע עַמִּ֖י שְׁמִ֑י לָכֵן֙ בַּיּ֣וֹם הַה֔וּא כִּֽי־אֲנִי־ה֥וּא הַֽמְדַבֵּ֖ר הִנֵּֽנִי׃
Therefore My people shall know My name; Therefore they shall know in that day That I, even He that spoke, behold, here I am.
Targum Jonathan on Isaiah
Therefore my name shall be magnified among the nations: therefore at that time ye shall know, that I am He that hath spoken: and my WORD shall abide.