Deuteronomy 6:13

CAB⁽ⁱ⁾ ¹³ You shall fear the Lord your God, and Him only shall you serve; and you shall cleave to Him, and by His name you shall swear.

Online Parallel Study Bible

fear.
Deuteronomy 6:2; Deuteronomy 5:29; Deuteronomy 10:12; Deuteronomy 10:20; Deuteronomy 13:4; Matthew 4:10; Luke 4:8
and serve him.Our Saviour quotes these words thus: "And him only [aut\u65533 mon\u65533,] shalt thou serve;" from which it would appear, that the word {levaddo} was anciently in the Hebrew text, as it was in the Septuagint, Coptic, Vulgate (illi soli), and Anglo-Saxon. Dr. Kennicott argues that without the word only, the text would not have conclusive for the purpose for which our Lord advanced it. It is proper, however, to observe, that the word {levaddo} is not found in any MS. yet collated, though retained in the above versions.
shalt swear.
Leviticus 19:12; Joshua 2:12; Psalms 15:4; Psalms 63:11; Isaiah 45:23; Isaiah 65:16; Jeremiah 4:2; Jeremiah 5:2; Jeremiah 5:7
Jeremiah 12:16