The interpretation timeline
Mark 10:9 Douay-Rheims

What therefore God hath joined together, let not man put asunder.

A.D. 407 – 1771 3 witnesses 4 excerpts

Patristic

before A.D. 750
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“(ubi sup.) After this, bringing forward an awful argument, He said not, do not divide, but He concluded, What therefore God hath joined together, let not man put asunder.”
“(non occ.) But if two persons, whom God has joined together, are not to be separated; much more is it wrong to separate from Christ, the Church, which God has joined to Him.”
735
A.D.
Bede the Venerable Patristic
c. A.D. 672–735
“(ubi sup.) What therefore God hath conjoined by making one flesh of a man and a woman, that man cannot separate, but God alone. Man separates, when we dismiss the first wife because we desire a second; but it is God who separates, when by common consent, for the sake of serving God, we so have wives as though we had none.n”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“What therefore God hath joined together,.... See Gill on Mat 19:6. . Mark 10:10 mar 10:10 mar 10:10 mar 10:10And in the house,.... To which Christ retired, after he had put the Pharisees to silence, and dismissed the multitude: his disciples asked him again of the same matter; concerning the affair of divorces, be bad been discoursing with the Pharisees about; some things being said, they had not been used to, and which they did not thoroughly understand; and therefore chose privately to converse with him on this subject, for their further information.”
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.