But now thus saith the LORD that created thee, O Jacob, and he that formed thee, O Israel, Fear not: for I have redeemed thee, I have called thee by thy name; thou art mine. I have called thee by thy name - "קראתי בשמך karathi beshimcha. So all the versions. But it seems from the seventh verse, and from the thing itself, that we should read קראתיך בשמי karathicha bishmi, 'I have called thee by my name;' for this form of speech often occurs - the other never. For Isaiah 45:24, concerning Cyrus, is another matter; but when God calls Jacob Israel, he calls him by the name of God. See Exodus 31:2." - Secker.
Related Commentaries of Isaiah 43:1
Isaiah 43:1
1 But now thus saith the LORD that created thee, O Jacob, and he that formed thee, O Israel, Fear not: for I have redeemed thee, I have called thee by thy name; thou art mine.