Parallel
1 Samuel 20:5
Clementine Vulgate · Berean Standard Bible
Dixit autem David ad Jonathan : Ecce calendæ sunt crastino, et ego ex more sedere soleo juxta regem ad vescendum : dimitte ergo me ut abscondar in agro usque ad vesperam diei tertiæ.
So David told him, “Look, tomorrow is the New Moon (note: That is, the New Moon feast; also in verses 18, 24, and 27), and I am supposed to dine with the king. Instead, let me go and hide in the field until the third evening from now.