WORDS: There is none like the God of Jeshurun
Who rides on the heavens to help you
And in His majesty
on the sky
The Eternal God is thy refuge
And underneath are the Everlasting Arms

Deuteronomy 33:26-27

Jeshurun (Hebrew: יְשֻׁרוּן Yəšurūn) is an affectionate name for Israel used in the Hebrew Bible, some scholars say derived from ישׁר Jasher, 'upright', others from שׁור, shur, to see, or may be a diminutive form of the word Israel (יִשְׂרָאֵל‬ Yiśrāʾēl).

In the Greek translation of the Old Testament, the word Ηγαπημενος Egapemenos is used in place of the Hebrew Jeshurun (Deut. 32:15; 33:26; Isa. 44:2). Ηγαπημενω is translated “Beloved” in the New Testament and is one of the names of Jesus (Yeshua‘). So, in a sense, the people of God share the same nickname “beloved” with Jesus. From -
http://namesforgod.net/god-of-jeshurun/
I checked this out and apparently Jesus is "Beloved" in Ephesians 1:6, but the lexeme is used many, many more times in the New Testament about the people of God than about Jesus.

Here is a messianic Jewish synagogue (recognising Yeshua i.e. Jesus as Messiah) who call themselves by this name:
http://bnai-yeshurun.org/about_us