A few quotes from the Rabbi on 'Love of Israel'
in which he teaches that He redeemed them Himself, in His glory, for the People of Israel are unique in their world
Why did the Holy One, blessed be He, need to redeem Israel from Egypt Himself, in His glory, and not by the hand of an angel?..."When the evil Nimrod threw our father, Abraham, into the fiery furnace, Gabriel said before the Holy One, Blessed be He: 'Master of the Universe, I will descend and save the righteous from the fiery furnace'. The Holy One, blessed be He, said to him: 'I am unique in my world and he is unique in his world. It is fitting for the unique to save the unique"… The Midrash says, in reference to 'So let the redeemed of the LORD say': "What are they to say? That there is none other than He". What does this mean? Where do they find evidence for this? What reason or explanation do they have for saying, 'There is none other than He'? It therefore concludes by saying, "whom He hath redeemed from the hand of the adversary" - G-d Himself, as a matter of fact, in all His glory. One cannot but say: Since He is unique in His world, and the People of Israel (is unique or the children of Israeli are) unique, He redeemed them Himself, in His glory.
Geulat Hashem, p. 15b, Israel Kushta and Friends, Livorno, 1864