John Calvin Commentary Genesis 24:57

"And they said, We will call the damsel, and inquire at her mouth." — Genesis 24:57 (ASV)

We will call the damsel. Bethuel, who had previously unreservedly given his daughter in marriage, now seems to adhere with little constancy to his purpose. When, however, he had previously offered his daughter without making any exception, he is to be understood as having done so, only as far as he was able.

But now, Moses declares that he did not exercise tyranny over his daughter, so as to thrust her out reluctantly, or to compel her to marry against her will, but left her to her own free choice. Truly, in this matter, the authority of parents should be sacred; but a middle course should be pursued, so that the parties concerned may make their contract spontaneously and with mutual consent.

It is not right to understand that Rebekah, in answering so explicitly, showed contempt for her father's household or too anxiously desired a husband; but since she saw that the affair was transacted by the authority of her father and with the consent of her mother, she herself also acquiesced in it.