Isaías 43
Ambrose of Milan · Comentário Patrístico (catena)
Isaías 43:2
We are wayfarers in this life; many walk, but it is needful that we walk aright, for then is the Lord Jesus with us, as we read, When thou passest through the waters I will be with thee, and through the rivers, they shall not overflow thee; when thou walkest through the fire thou shalt not be burned. But if a man take fire in his bosom, the fire of lust, the fire of immoderate desire he walketh not through, but burns this clothing of his soul. A good name is rather to be chosen than great riches, and loving favour than silver and gold! Faith is sufficient for itself, and in its own possession is rich enough. And to the wise man nothing is foreign, but what is contrary to virtue; wherever he goes, he finds all things to be his own. All the world is his possession, for he uses it all as if it were his own. — Letter 2, To Constantius
Isaías 43:19-20
But He, although He took on Him our flesh, although He was made man that He might redeem man, and recal him from death, still, as being God, came upon earth in an extraordinary way, that as He had said, 'Behold I make all things new,' so also He might be born of an immaculate virgin, and be believed to be, as it is written, 'God with us.' But from their perverse ways they are induced to say 'She was a virgin when she conceived, but not a virgin when she brought forth.' Could she then conceive as a virgin, and yet not be able to bring forth as a virgin, when conception always precedes, and birth follows? — Letter 42, To Pope Siricius
Isaías 43:25
You have blotted it out, indeed, in your hearts and minds, but the Word of God is not blotted out, the Holy Spirit is not blotted out but turns away from impious minds. It is not grace but iniquity that is blotted out; for it is written, "I am he, I am he who blots out your iniquities." — On the Holy Spirit 3.10.61