Adam Clarke's Commentary on the Bible - Isaiah 51:5
My righteousness is near - The word צדק tsedek , righteousness, is used in such a great latitude of signification, for justice, truth, faithfulness, goodness, mercy, deliverance, salvation, etc., that it is not easy sometimes to give the precise meaning of it without much circumlocution; it means here the faithful completion of God's promises to deliver his people. read more
Adam Clarke's Commentary on the Bible - Isaiah 51:4
By people - O my nation "O ye peoples - O ye nations" - For עמי ammi , my people, the Bodleian MS. and another read עמים ammim , ye peoples; and for לאומי leumi , my nation, the Bodleian MS. and eight others, (two of them ancient), and four of De Rossi's, read לאמים leummim , ye nations; and so the Syriac in both words. The difference is very material; for in this case the address is made not to the Jews, but to the Gentiles, as in all reason it ought to be; for this and the... read more