1 Samuel 20:17-27

17 And Jonathan made David swear again by his love for him; for he loved him as he loved his own soul.
18 Then Jonathan said to him, "Tomorrow is the new moon; and you will be missed, because your seat will be empty.
19 And on the third day you will be greatly missed; then go to the place where you hid yourself when the matter was in hand, and remain beside yonder stone heap.
20 And I will shoot three arrows to the side of it, as though I shot at a mark.
21 And behold, I will send the lad, saying, 'Go, find the arrows.' If I say to the lad, 'Look, the arrows are on this side of you, take them,' then you are to come, for, as the LORD lives, it is safe for you and there is no danger.
22 But if I say to the youth, 'Look, the arrows are beyond you,' then go; for the LORD has sent you away.
23 And as for the matter of which you and I have spoken, behold, the LORD is between you and me for ever."
24 So David hid himself in the field; and when the new moon came, the king sat down to eat food.
25 The king sat upon his seat, as at other times, upon the seat by the wall; Jonathan sat opposite, and Abner sat by Saul's side, but David's place was empty.
26 Yet Saul did not say anything that day; for he thought, "Something has befallen him; he is not clean, surely he is not clean."
27 But on the second day, the morrow after the new moon, David's place was empty. And Saul said to Jonathan his son, "Why has not the son of Jesse come to the meal, either yesterday or today?"
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.