John Gills Exposition of the Bible Commentary - Exodus 32:12
Wherefore should the Egyptians speak and say ,.... Those that remained, as the Targum of Jonathan, who were not drowned in the Red sea: a good man will be concerned for the honour and glory of God among the enemies of his people, that their mouths may not be opened to blaspheme the Lord and speak ill of his ways, see Joshua 7:9 and this is sometimes an argument with God himself, not to do that to his people they deserve, lest it should give occasion to the enemy to speak reproachfully,... read more
Matthew Henry's Complete Commentary - Exodus 32:7-14
Here, I. God acquaints Moses with what was doing in the camp while he was absent, Exod. 32:7, 8. He could have told him sooner, as soon as the first step was taken towards it, and have hastened him down to prevent it; but he suffered it to come to this height, for wise and holy ends, and then sent him down to punish it. Note, It is no reproach to the holiness of God that he suffers sin to be committed, since he knows, not only how to restrain it when he pleases, but how to make it serviceable... read more