3 Then said the princes of the Philistines, What do these Hebrews here? And Achish said unto the princes of the Philistines, Is not this David, the servant of Saul the king of Israel, which hath been with me these days, or these years, and I have found no fault in him since he fell unto me unto this day?
[AD 735] Bede on 1 Samuel 29:3
The princes of the Philistines said: What do these Hebrews want? The pagans despise the life, society, and doctrine of the faithful of Christ, who are justly called Hebrews, that is, those who pass over; because they now know how to transit from vices to virtues, in the future to hope for a passage from death to life, to transcend the low desires of the flesh, and likewise all the adversities of the world, the soaring heights of a humble mind.

[AD 735] Bede on 1 Samuel 29:3
And Achish said to the princes of the Philistines, etc. Achish praising the friendship of David, the angry princes of the Philistines avoid his companionship in battle, fearing his fighting prowess as fame spreads. Finally, among other things they say:

[AD 735] Bede on 1 Samuel 29:3
Is this not David? etc. While the Church of the nations praises the faith in Christ, through which eternal life is deserved, angry philosophers and priests of idols fear to believe in Him, whose word they mourn has destroyed their worship and wisdom; they see His triumph over the ancient enemy being celebrated in the unanimous chorus of the holy Church, one which no other could have merited, they refuse to unite themselves to His members, to be subject to His rule by receiving faith.

[AD 735] Bede on 1 Samuel 29:3
And Achish called David, and said to him, etc. Achish himself indeed declares David to be upright, innocent, and good, as an angel of God; but so as not to offend the eyes of the Philistine princes, he orders him to withdraw from the battle, in peace, with anger. The crowd of believers from the nations praises, loves, and proclaims Christ's justice, mercy, and holiness, as of Him who was sent by God for the salvation of the nations, but prays that the word should not be entrusted to blasphemous and proud leaders of idolatry, lest by hearing and not believing they incur a greater judgment; and it urges the Lord, as it were, to be content to rest in the calm and serene hearts of believers, rather than offering Himself to the non-believing by preaching, thus providing a cause for scandals and persecutions.