first thanks for the reply. second let's see if we can help you to understand the "ECHAD" of God. scripture, Isaiah 63:5 "And I looked, and there was none to help; and I wondered that there was none to uphold: therefore mine own arm brought salvation unto me; and my fury, it upheld me."
Mike, if God "OWN ARM" brought salvation unto him, then HIS "OWN ARM" is him correct? now LISTEN carefully. Isaiah 53:1 "Who hath believed our report? and to whom is the arm of the LORD revealed?" God is about to reveal who his OWN ARM is. next verse, Isaiah 53:2 "For he (God's own arm, flesh and blood), shall grow up before him (God, the Spirit), as a tender plant, and as a root out of a dry ground: he (God's own arm, flesh and blood), hath no form nor comeliness; and when we shall see him, (God's own arm, flesh and blood),there is no beauty that we should desire him."
101G ask you Mike, is the "he" here in Isaiah 53, God's own ARM is the he here the Lord Jesus, yes or no?
101G.
I have to look at the passages in more detail before thinking what your question is about. It is interesting in isa 63:7-9 (NKJV)
I will mention the lovingkindnesses of the LORD
And the praises of the LORD,
According to all that the LORD has bestowed on us,
And the great goodness toward the house of Israel,
Which He has bestowed on them according to His mercies,
According to the multitude of His lovingkindnesses.
8 For He said, “Surely they are My people,
Children who will not lie.”
So He became their Savior.
9 In all their affliction He was afflicted,
And the Angel of His Presence saved them;
In His love and in His pity He redeemed them;
And He bore them and carried them
All the days of old.
We see that God became their Savior and was afflicted. That is a very grand point to find.
The answer seems to be that God's arm in Isa 63:5 could mildly refer to Christ. But here, it really has the sense of God in a protective situation for the elect of Israel in the face of his fury. Yet Isa 63:12 shows it without obvious application to Christ. But we see Isa 63:7-9 shows God coming to the Israel people as Savior and being afflicted.
The LXX is interesting and shows God as the messenger
Isaiah 63:7–9 (LES)
7I recalled the mercy of the Lord, the praises of the Lord in all the things by which he repays us. The Lord is a good judge to the house of Israel; he deals with us according to his mercy and according to the greatness of his righteousness.
8And he said, “Are they not my people? Children, they will never rebel.” And he became their salvation
9from all their affliction. Not an elder or a messenger but he himself has saved them, because he loved them and spared them. He himself ransomed them and took them up and exalted them all the days of old.
Rick Brannan et al., eds., The Lexham English Septuagint (Bellingham, WA: Lexham Press, 2012), Is 63:7.
Extra Observations:
The arm of the Lord in Isa 63:5 is in the context of Israel appearing like Edom stained in blood. God was bringing his fury on Israel but had to limit it. We see the balancing of considerations involved in both the ultimate judgment of Israel but also in having spared the elect.