Deuteronomy 6:4 in English and in Hebrew

Hear, Israel: The LORD is our God. The LORD is one.

Deuteronomy 6:4 (WMB)

שְׁמַע יִשְׂרָאֵל יְהוָה אֱלֹהֵינוּ יְהוָה אֶחָד

Shema Yisrael Adonai Eloheinu Adonai Echad

<Eḥad" (אֶחָד) can mean one (numerical and singular), Unified / Oneness / Unity, Alone / Only, Together, First, and Each / Certain>

<Eḥad is used for the word for one but it encompasses ideas of singularity, unity, exclusivity, and priority>