Moses
Genesis 34:15ESV·traditional attribution

Only on this condition will we agree with you—that you will become as we are by every male among you being circumcised.

Matthew Henry Presbyterian @wholebiblehenry

Jacob's sons, when they heard of the injury done to Dinah, showed a very great resentment of it, influenced perhaps rather by jealousy for the honour of their family than by a sense of virtue. Many are concerned at the shamefulness of sin that never lay to heart the sinfulness of it.

Commenting on Genesis 34:6-17

John Gill Reformed Baptist @doctorgill

But in this will we consent unto you,.... Upon the following condition, that Dinah should be given in marriage: if ye will be as we be, that every male of you be circumcised; as the sons of Jacob were, according to the command given to Abraham their great grandfather, Gen 17:10.

Geneva Bible Notes Reformed @genevanotes

But in this will we consent unto you: If ye will be as we [be], that every male of you be circumcised; (e) Their fault is even greater since they made religion a disguise for their deceit.