And Saul spoke to Jonathan his son, and to all his servants, that they should kill David.
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Augustine of Hippo
AD 430
But true martyrs are such as those of whom the Lord says, “Blessed are those who are persecuted for righteousness’ sake.” It is not, therefore, those who suffer persecution for their unrighteousness and for the divisions which they impiously introduce into Christian unity, but those who suffer for righteousness’ sake, that are truly martyrs. For Hagar also suffered persecution at the hands of Sarah; and in that case she who persecuted was righteous, and she who suffered persecution was unrighteous. Are we to compare with this persecution which Hagar suffered to the case of holy David, who was persecuted by unrighteous Saul? Surely there is an essential difference, not in respect of his suffering but because he suffered for righteousness’ sake. - "The Correction of the Donatists 2.9"
Jonathan. He was most interested, as David might be feared as a competitor; (Menochius) and, under the cloak of friendship, he might more easily destroy him. Saul was a stranger to the generous sentiments of his son, or he would never have made the proposal. (Haydock)
Grotius compares him with Germanicus. (Calmet)
