1 Samuel 20:22
But if I say thus unto the young man, Behold, the arrows are beyond thee; go thy way: for the LORD hath sent thee away. But if I say thus unto the young man, Behold, the arrows are beyond thee; go thy way: for the LORD hath sent thee away.
The verse belongs to the history after the slaying of Goliath, when Saul kept David with him and would not permit him to return to his father's house. It reflects that the soul of Jonathan was knit with the soul of David, with Jonathan loving him as his own soul. Jonathan and David made a covenant to be united as brethren, and Jonathan gave David his robe and his garments, even his sword and his bow and his girdle. At that time David was entrusted with important responsibilities and by modesty won the affection of the people and the royal household.
The verse is the agreed signal in Jonathan's plan to learn Saul's intentions and tell David whether it was safe to return, meaning that David must go away. Saul's anger at David's absence revealed that David must flee. The signal shows the danger and separation that Jonathan's loyalty helped David survive, with God using their sacred bond to preserve David's life from Saul's attempt to kill him. Jonathan and David parted in grief, reaffirming their covenant before the Lord and asking the Lord to remain between their families.