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?" 28 Jonathan answered Saul, "David earnestly asked leave of me to go to Bethlehem; 29 he said, 'Let me go; for our family holds a sacrifice in the city, and my brother has commanded me to be there. So now, if I have found favor in your eyes, let me get away, and see my brothers.' For this reason he has not come to the king's table." 30 Then Saul's anger was kindled against Jonathan, and he said to him, "You son of a perverse, rebellious woman, do I not know that you have chosen the son of Jesse to your own shame, and to the shame of your mother's nakedness? 31 For as long as the son of Jesse lives upon the earth, neither you nor your kingdom shall be established. Therefore send and fetch him to me, for he shall surely die." 32 Then Jonathan answered Saul his father, "Why should he be put to death? What has he done?" 33 But Saul cast his spear at him to smite him; so Jonathan knew that his father was determined to put David to death. 34 And Jonathan rose from the table in fierce anger and ate no food the second day of the month, for he was grieved for David, because his father had disgraced him.

Matthew Henry's Commentary on 1 Samuel 20:24-34

Commentary on 1 Samuel 20:24-34

(Read 1 Samuel 20:24-34)

None were more constant than David in attending holy duties; nor had he been absent, but self-preservation obliged him to withdraw. In great peril present opportunities for Divine ordinances may be waved. But it is bad for us, except in case of necessity, to omit any opportunity of statedly attending on them. Jonathan did wisely and well for himself and family, to secure an interest in David, yet for this he is blamed. It is good to take God's people for our people. It will prove to our advantage at last, however it may now be thought against our interest. Saul was outrageous. What savage beasts, and worse, does anger make men!