Matthew
Matthew 19:5ESV·traditional attribution

and said, ‘Therefore a man shall leave his father and his mother and hold fast to his wife, and the two shall become one flesh’?

John Calvin Reformed @genevareformer

5. Therefore shall a man leave his father and mother. It is uncertain whether Moses represents Adam or God as speaking these words; but it is of little consequence to the present passage which of these meanings you choose, for it was enough to quote the decision which God had pronounced, though it might have been uttered by the mouth of Adam.

John Gill Reformed Baptist @doctorgill

And said,.... Gen 2:24 where they seem to be the words of Adam, though here they are ascribed to God, who made Adam and Eve; and as if they were spoken by him, when he brought them together; and which is easily reconciled by observing, that these words were spoken by Adam, under the direction of a divine revelation; showing, that there would be fathers...

Jamieson-Fausset-Brown Reformed @jfbcommentary

And said, For this cause--to follow out this divine appointment. shall a man leave father and mother, and shall cleave to his wife: and they twain shall be one flesh?--Jesus here sends them back to the original constitution of man as one pair, a male and a female; to their marriage, as such, by divine appointment; and to the purpose of God, expressed by the...