3 And he came to the sheepcotes by the way, where was a cave; and Saul went in to cover his feet: and David and his men remained in the sides of the cave.
Saul, unaware of David’s hiding place, also entered the cave in order to take care of his needs, I presume.… Accordingly, this psalm of David is accepted for certain in the name of the Lord; Saul appears as the devil, and the cave becomes this world. The devil, furthermore, does not discharge any good into this world, but only dung and corruption. Then, too, the cave symbolizes this world because its light is very imperfect when compared with the light of the future world, albeit the Lord, on coming into this world as light, brightens it up considerably. That is why the apostle, in relation to the Father, speaks of him “who is the brightness of his glory.” Now just as David entered the cave in his flight from Saul, the Lord, too, has come into this world and has suffered persecution.
David, as we have said, took on the character of the Lord Savior, and so what was to take place at the Lord’s passion is now recounted of him. David was not to be effaced from the kingdom allotted to him, just as the inscription of the Lord’s title could not be changed. The psalmist added, “When he fled from Saul into the cave.” This incident seems to be very similar in the cases of both David and the Lord. Just as David in fleeing from Saul hid in a cave, so the Lord Savior’s divinity is known to have been hidden within the temple of his body from the unfaithful Jews. In this way the individual events concerning David and Christ are shared by them in this respect.
And he also came to the sheepfolds, etc. In persecuting the great shepherd of the sheep, our Lord Jesus Christ, he also dragged the wicked investigation to the gatherings of his faithful disciples, who offered themselves as sheep to the raging wolves, to see if they could find any reason within them to criticize their master. Hence the saying: "Behold, your disciples do what is not lawful on the Sabbaths," and others (Mark II).
And there was a cave, etc. This cave is a symbol of the Lord's tomb, whose entrance Saul entered to relieve himself, while the rulers of the kingdom of the Jews, having departed from Pilate, secured the tomb, sealing the stone with guards, in an attempt to block the path of resurrection to the Author of Life. By doing this, they revealed to all the long-conceived and steeped filth of their unfaithful minds. Moreover, the Lord lay hidden in the inner part of the tomb, and his men also hid there—that is, the strong who at that time were to become stronger as his disciples. It is certain that wherever they were in the city of Jerusalem at that time in body, they held with their entire focus and desire the place of the tomb, where they mourned the burial of the only one they loved. Indeed, they hid in the cave because they did not at all want those who had unjustly killed him to know the devotion and love they had for him. Or certainly it is to be understood that David’s men hid with him in the cave, and even rose and came out from the cave with him, according to the Apostle’s statement: "Our old self was crucified with him so that the body of sin might be destroyed, and we might no longer be slaves to sin" (Rom. VI). And as he had previously said: "For as many of us as were baptized into Christ Jesus were baptized into his death. We were therefore buried with him through baptism into death, in order that, just as Christ was raised from the dead through the glory of the Father, we too may walk in newness of life" (Rom. VI).
[AD 420] Jerome on 1 Samuel 24:3