100 And yet although Jacob was superior in virtue and favour, he yielded to his brother's anger, who grieved that his younger brother was preferred to him. And so it is written: “Give place to wrath,” lest the wrath of another draw you also into sin, when you wish to resist, and to avenge yourself. You can put away sin both from him and from yourself, if you think well to yield. Imitate the patriarch who by his mother's counsel went far away. And who was the mother? Rebecca, that is, Patience. For who but Patience could have given this counsel? The mother loved her son, but preferred that he should be cut off from herself rather than from God. And so because the mother was good, she benefited both her sons, but to the youngest she gave a blessing which he could keep; yet she preferred not one son to the other as sons; but the active to the easy-going, the faithful to the unbelieving.
Source: Letters (New Advent)