John Wesley on Exodus 32:32

If not - If the decree be gone forth, and there is no remedy but they must be ruined, blot me, I pray thee out of the book which thou hast written - That is, out of the book of life. If all Israel must perish, I am content to perish with them. This expression may be illustrated from Rom 9:3. For I could wish myself to be an anathema from Christ, for my brethren's sake. Does this imply no more than not enjoying Canaan? Not that Moses absolutely desired this, but only comparatively expresses his vehement zeal for God's glory, and love to his people, signifying, that the very thought of their destruction, and the dishonour of God, was so intolerable to him, that he rather wishes, if it were possible, that God would accept of him, as a sacrifice in their stead, and by his utter destruction, prevent so great a mischief.