Genesis 17:5

New English Translation

⁵No longer will your name be^[a] Abram. Instead, your name will be Abraham^[b] because I will make you^[c] the father of a multitude of nations.

Genesis 17:5 tn Heb “will your name be called.”
Genesis 17:5 sn Your name will be Abraham. The renaming of Abram was a sign of confirmation to the patriarch. Every time the name was used it would be a reminder of God’s promise. “Abram” means “exalted father,” probably referring to Abram’s father Terah. The name looks to the past; Abram came from noble lineage. The name “Abraham” is a dialectical variant of the name Abram. But its significance is in the wordplay with אַב־הֲמוֹן (ʾav hamon, “the father of a multitude,” which sounds like אַבְרָהָם, ʾavraham, “Abraham”). The new name would be a reminder of God’s intention to make Abraham the father of a multitude. For a general discussion of renaming, see O. Eissfeldt, “Renaming in the Old Testament,” Words and Meanings, 70-83.
Genesis 17:5 tn The perfect verbal form is used here in a rhetorical manner to emphasize God’s intention.

Genesis 32:28

New English Translation

²⁸“No longer will your name be Jacob,” the man told him,^[a] “but Israel,^[b] because you have fought^[c] with God and with men and have prevailed.”

Genesis 32:28 tn Heb “and he said.” The referent of the pronoun “he” (the man who wrestled with Jacob) has been specified for clarity, and the order of the introductory clause and the direct discourse has been rearranged in the translation for stylistic reasons.
Genesis 32:28 sn The name Israel is a common construction, using a verb with a theophoric element (אֵל, ʾel) that usually indicates the subject of the verb. Here it means “God fights.” This name will replace the name Jacob; it will be both a promise and a call for faith. In essence, the Lord was saying that Jacob would have victory and receive the promises because God would fight for him.
Genesis 32:28 sn You have fought. The explanation of the name Israel includes a sound play. In Hebrew the verb translated “you have fought” (שָׂרִיתָ, sarita) sounds like the name “Israel” (יִשְׂרָאֵל, yisraʾel), meaning “God fights” (although some interpret the meaning as “he fights [with] God”). The name would evoke the memory of the fight and what it meant. A. Dillmann says that ever after this the name would tell the Israelites that, when Jacob contended successfully with God, he won the battle with man (Genesis, 2:279). To be successful with God meant that he had to be crippled in his own self-sufficiency (A. P. Ross, “Jacob at the Jabboq, Israel at Peniel,” BSac 142 [1985]: 51-62).

New English Translation (NET)