1 Samuel 20:5

20:5 David said to Jonathan, “Tomorrow is the new moon, and I am certainly expected to join the king for a meal. You must send me away so I can hide in the field until the third evening from now.

1 Samuel 20:27

20:27 But the next morning, the second day of the new moon, David’s place was still vacant. So Saul said to his son Jonathan, “Why has Jesse’s son not come to the meal yesterday or today?”