The interpretation timeline
Luke 9:17 Douay-Rheims

And they did all eat, and were filled. And there were taken up of fragments that remained to them, twelve baskets.

A.D. 397 – 1771 5 witnesses

Patristic

before A.D. 750
397
A.D.
Ambrose of Milan Patristic
A.D. 339–397
“; Not without meaning are the fragments which remained over and above what the multitudes had eaten, collected by the disciples, since those things which are divine you may more easily find among the elect than among the people. Blessed is he who can collect those which remain over and above even to the learned. But for what reason did Christ fill twelve baskets, except that He might solve that word concerning the Jewish people, His hands served in the basket? (Ps. 81:6.) that is, the people who before collected mud for the pots, now through the cross of Christ gather up the nourishment of the heavenly life. Nor is this the office of few, but all. For by the twelve baskets, as if of each of the tribes, the foundation of the faith is spread abroad.”
Source
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“(ubi sup.) But He caused not loaves to remain over, but fragments, that He might shew them to be the remnants of the loaves, and these were made to be of that number, that there might be as many baskets as disciples.”
444
A.D.
A.D. 376–444
“Nor was this all that the miracle came to; but it follows, And there was taken up of the fragments that remained, twelve baskets, that this might be a manifest proof that a work of love to our neighbour will claim a rich reward from God.”
735
A.D.
Bede the Venerable Patristic
c. A.D. 672–735
“Or by the twelve baskets the twelve Apostles are figured, and all succeeding teachers, despised indeed by men without, but within loaded with the fragments of saving food.”

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“And it came to pass, as he was alone praying,.... To his God and Father, for himself as man, and mediator; for the success of his Gospel, and the increase of his interest; and for his disciples, that they might have a clearer revelation of him; and which they had, as appears in their after confession of him by Peter, as the mouth of them all. The place where he now retired for private devotion, was somewhere in the coasts of Caesarea Philippi; for he was now gone from the desert of Bethsaida, as appears from Mat 16:13 and when he is said to be alone, the meaning is, that he was retired from the multitude, but not from his disciples; for it follows, his disciples were with him, in this solitary place: and he asked them, being with them alone; saying, Whom say the people that I am? what are the sentiments of the common people, or of the people in general concerning me? The Alexandrian copy, and the Arabic version read, "men", as in Mat 16:13. See Gill on Mat 16:13.”
Source
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.