24 David hid in the field. On the holiday of the New Moon, the king came to the table to eat. 25 He sat where he always sat, the place against the wall, with Jonathan across the table and Abner at Saul's side. But David's seat was empty. 26 Saul didn't mention it at the time, thinking, "Something's happened that's made him unclean. That's it - he's probably unclean for the holy meal." 27 But the day after the New Moon, day two of the holiday, David's seat was still empty. Saul asked Jonathan his son, "So where's that son of Jesse? He hasn't eaten with us either yesterday or today." 28 Jonathan said, "David asked my special permission to go to Bethlehem. 29 He said, 'Give me leave to attend a family reunion back home. My brothers have ordered me to be there. If it seems all right to you, let me go and see my brothers.' That's why he's not here at the king's table." 30 Saul exploded in anger at Jonathan: "You son of a slut! Don't you think I know that you're in cahoots with the son of Jesse, disgracing both you and your mother? 31 For as long as the son of Jesse is walking around free on this earth, your future in this kingdom is at risk. Now go get him. Bring him here. From this moment, he's as good as dead!" 32 Jonathan stood up to his father. "Why dead? What's he done?" 33 Saul threw his spear at him to kill him. That convinced Jonathan that his father was fixated on killing David. 34 Jonathan stormed from the table, furiously angry, and ate nothing the rest of the day, upset for David and smarting under the humiliation from his father.

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!