John Gill Bible Commentary

And it came to pass on the morrow, which was the second day of the month,.... The Targum is,"and it was on the day after it, which was the intercalation of the second month;''when the beginning of the month was judged of by the appearance of the moon, and there was a difficulty about that, what day it appeared on, two days were kept for it; and Abarbinel (e) is clear for it, that two days were kept in this month; but if this was not the case, since the remainder of peace offerings might be eaten the next day, Lev 7:16. Saul and his guests might meet on the second day for that purpose: that David's place was empty: on that day also: and Saul said to Jonathan his son; who he knew was David's friend and confident, and could give the best account of him: wherefore cometh not the son of Jesse to meat, neither yesterday nor today; he accounted for his not coming yesterday, because he supposed he might be under some ceremonial uncleanness; but then that only lasted to the evening of that day; but not coming the second day when he was clean, he inquires after him; and not owning him for his son-in-law, by way of contempt, and to lessen him in the esteem of all at table, he calls him the son of Jesse. (e) Comment. in Exod. xii.