Commentaries:
Jamieson, Fausset, and Brown
in righteousness—rather, "for a righteous purpose" [LOWTH]. (See Isaiah 42:21). God "set forth" His Son "to be a propitiation (so as) to declare His (God's) righteousness, that God might be just, and (yet) the justifier of him which believeth in Jesus" (Romans 3:25-26; compare see on Isaiah 41:2; Isaiah 45:13; Isaiah 50:8-9).
hold . . . hand—compare as to Israel, the type of Messiah, Hosea 11:3.
covenant—the medium of the covenant, originally made between God and Abraham (Isaiah 49:8). "The mediator of a better covenant" (Hebrews 8:6) than the law (see Isaiah 49:8; Jeremiah 31:33; Jeremiah 50:5). So the abstract "peace," for peace-maker (Micah 5:5; Ephesians 2:14).
the people—Israel; as Isaiah 49:8, compared with Isaiah 42:6, proves (Luke 2:32).
Other Jamieson, Fausset, and Brown entries containing Isaiah 42:6:
Job 8:20
Isaiah 41:29
Isaiah 42:5
Isaiah 42:6
Isaiah 42:7
Isaiah 42:9
Isaiah 42:21
Isaiah 43:1
Isaiah 45:1
Isaiah 45:13
Isaiah 45:21
Isaiah 49:6
Isaiah 49:8
Isaiah 51:4
Isaiah 59:16
Isaiah 62:2
Daniel 9:27
John 8:12
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