'New moon' in the Bible

And David said unto Jonathan - Lo! the new moon, is to-morrow, and, I, must not sit with the king, to eat, - let me go then, and hide myself in the field, until the evening.

Then said Jonathan unto him - To-morrow, is the new moon, and thou wilt be missed, for thy seat will be empty;

So David hid himself in the field - and, when the new moon had come, the king sat down to eat, food,