Genesis 21:9

Playing, or persecuting, as St. Paul explains it, Galatians iv. 29. The play tended to pervert the morals of the young Isaac, whether we understand this term metsachak, as implying idolatry, or obscene actions, or fighting; in all which senses it is used in Scripture. See Exodus xxxii. 6; Genesis xxvi. 8; 2 Kings ii. 14.) (Menochius) --- Ismael was 13 years older than Isaac; and took occasion, perhaps, from the feast, and other signs of preference given by his parents to the latter, to hate and persecute him, which Sara soon perceiving, was forced to have recourse to the expedient apparently so harsh, of driving Ismael and his mother from the house, that they might have an establishment of their own, and not disturb Isaac in the inheritance after the death of Abraham. (Haydock) --- In this she was guided by a divine light; (Menochius) and not by any female antipathy, ver. 12. Many of the actions of worldlings, which at first sight may appear innocent, have a natural and fatal tendency to pervert the morals of the just; and therefore, we must keep as much as possible at a distance from their society. --- With Isaac her son. Hebrew has simply mocking, without mentioning what. But the sequel shews the true meaning; and this addition was found in some Bibles in the days of St. Jerome, as he testifies, and is expressed in the Septuagint. (Haydock) --- Ismael was a figure of the synagogue, which persecuted the Church of Christ in her birth. (Du Hamel)