tn Heb “Thus may the Lord do to me and thus may he add …” The construction וְכֹה יֹסִיף … כֹּה יַעֲשֶׂה (koh ya’aseh … vékhoh yosif, “May he do thus … and may he do even more so …!”) is an oath formula of self-imprecation (e.g., 1 Sam 3:17; 14:44; 20:13; 25:22; 2 Sam 3:9, 35; 19:14; 1 Kgs 2:23; 2 Kgs 6:31). In this formula the exact curse is understood but not expressed (GKC 472 §149.d; BDB 462 s.v. כֹּה 1.b). In ancient Near Eastern imprecations, when the curse was so extreme, it was not uttered because it was unspeakably awful: “In the twelve uses of this formula, the calamity which the speaker invokes is never named, since OT culture (in keeping with the rest of the ancient Near East) accorded such power to the spoken word” (F. W. Bush, Ruth, Esther [WBC], 82). Ruth here pronounces a curse upon herself, elevating the preceding promise to a formal, unconditional level. If she is not faithful to her promise, she agrees to become an object of divine judgment. As in other occurrences of this oath/curse formula, the specific punishment is not mentioned. As Bush explains, the particle כִּי (ki) here is probably asseverative (“indeed, certainly”) and the statement that follows expresses what underscores the seriousness of her promise by invoking divine judgment, as it were, if she does otherwise. Of course, the Lord would not have been obligated to judge her if she had abandoned Naomi—this is simply an ancient idiomatic way of expressing her commitment to her promise.

tn Heb “certainly death will separate me and you.” Ruth’s vow has been interpreted two ways: (1) Not even death will separate her from Naomi—because they will be buried next to one another (e.g., NRSV, NCV; see E. F. Campbell, Ruth [AB], 74–75). However, for the statement to mean, “Not even death will separate me and you,” it would probably need to be introduced by אִם (’im, “if”) or negated by לֹא (lo’, “not”; see F. W. Bush, Ruth, Esther [WBC], 83). (2) Nothing except death will separate her from Naomi (e.g., KJV, ASV, RSV, NASB, NIV, TEV, NJPS, REB, NLT, GW; see Bush, 83). The particle כִּי introduces the content of the vow, which—if violated—would bring about the curse uttered in the preceding oath (BDB 472 s.v. כִּי 1.c; e.g., Gen 42:16; Num 14:22; 1 Sam 20:3; 26:16; 29:6; 2 Sam 3:35; 1 Kgs 2:23; Isa 49:18). Some suggest that כּי is functioning as an asseverative (“indeed, certainly”) to express what the speaker is determined will happen (Bush, 83; see 1 Sam 14:44; 2 Sam 3:9; 1 Kgs 2:23; 19:2). Here כִּי probably functions in a conditional sense: “if” or “if … except, unless” (BDB 473 s.v. כִּי2.b). So her vow may essentially mean “if anything except death should separate me from you!” The most likely view is (2): Ruth is swearing that death alone will separate her from Naomi.

sn Ruth’s devotion to Naomi is especially apparent here. Instead of receiving a sure blessing and going home (see v. 8), Ruth instead takes on a serious responsibility and subjects herself to potential divine punishment. Death, a power beyond Ruth’s control, will separate the two women, but until that time Ruth will stay by Naomi’s side and she will even be buried in the same place as Naomi.