John Calvin Commentary Genesis 24:10

"And the servant took ten camels, of the camels of his master, and departed, having all goodly things of his master`s in his hand. And he arose, and went to Mesopotamia, unto the city of Nahor." — Genesis 24:10 (ASV)

And the servant took ten camels. He takes the camels with him to prove that Abraham is a man of great wealth, so that he might more easily obtain what he desires. For even an open-hearted girl would not easily allow herself to be drawn away to a distant region, unless she were assured of being supplied with the comforts of life.

Exile itself is sad enough, without poverty accompanying it. Therefore, so that the young woman might not be deterred by the fear of poverty, but rather be encouraged by the prospect of affluence, he loads ten camels with presents to give the inhabitants of Chaldea sufficient proof of Abraham's domestic wealth.

What follows, namely, that all the substance of Abraham was in the hand of his servant, some of the Hebrews incorrectly explain as meaning that the servant took with him an inventory of all Abraham’s wealth, described and attested in written documents. Rather, it is the explanation for the fact—which might seem improbable—that the servant assumed so much power to himself.

Therefore Moses, having said that a man who was only a servant set out on a journey with such a lavish and splendid retinue, immediately adds that he did this on his own authority, because he had all the substance of Abraham in his hand. In saying that he came to the city of Nahor, Moses neither mentions the name of the city nor the part of Chaldea, or of any other region, where Nahor lived, but only says, in general terms, that he came to “Syria of the rivers,” about which term I have said something previously.