Commentaries:
Jamieson, Fausset, and Brown
sworn by myself--equivalent to, "As I live," as Romans 14:11 quotes it. So Numbers 14:21. God could swear by no greater, therefore He swears by Himself (Hebrews 6:13, Hebrews 6:16).
word . . . in righteousness--rather, "the truth (see on Isaiah 45:19) is gone forth from My mouth, the word (of promise), and it shall not return (that is, which shall not be revoked)" [LOWTH]. But the accents favor English Version.
tongue . . . swear--namely, an oath of allegiance to God as their true King (see on Isaiah 19:18; Isaiah 65:16). Yet to be fulfilled (Zechariah 14:9).
Other commentary entries containing this verse:
Isaiah 19:18-22
Isaiah 48:1
Isaiah 62:8
Daniel 2:5
Romans 14:11-12
1 Corinthians 10:9
Philippians 2:10
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