Genesis 24:10

And the servant took ten camels from the camels of his lord, and went: for all the goodly treasures of his lord were in his hand; and he arose and went unto Aram, which was by the Pherat, to the city of Nachor.

AND ALL THE GOODS OF HIS MASTER BEING IN HIS HAND. Rashi comments: “This refers to a deed of gift of all his possessions which he wrote in favor of Isaac so that they would be eager to send him their daughter.” And so it is also stated in Bereshith Rabbah, “He carried with him a disposition of property.”
According to this opinion, the verse stating, And Abraham gave all that he had unto Isaac, means that he caused him to take possession of the belonging at the time of his death so that the other children would not contest his ownership, just as it is said, And he sent them away from Isaac his son, while he yet lived., Verse 6. If so, the word “taking” applies also to the second part of the verse, And the servant ‘took’ ten camels, and departed, and all the goods of his master he took in his hand. Perhaps [the words of the verse are to be transposed as follows]: “And the servant took ten camels and all the goods of his master in his hand, and departed.”
Others explain the sense of the verse as meaning that immediately upon being sworn, the servant himself went and took many camels from his master’s camels because all his master’s goods were in his hand, he being the officer and captain over all and authorized to take from him whatever he desired, just as the verse says, that ruled over all that he had.
The correct interpretation appears to me to be that the meaning of this verse is similar to that of the verse concerning Hazael, general of Aram, And Hazael went to meet him [Elisha the prophet], and took a present with him, and every good thing of Damascus, forty camels’ burden, [which means “and ‘of’ every good thing of Damascus].” Here too Scripture states that he took in his hand of all his master’s goods ten camels’ burden. The sense of the verse concerning Hazael is that the camels carried all that was good and excellent among those species of fruits and precious things that were found in Damascus or in his master’s house, and in addition they carried a present with them. In a similar sense is the verse, ten asses laden with the good of Egypt, [which means laden with the good and excellent fruits of Egypt]. The verses, however, shorten expressions when the subjects are understood.

וכל טוב אדוניו, the important people in Avraham’s household. This is why they are referred to as האנשים, a complimentary description, in verse 54.

ויקח העבד עשרה גמלים מדמלי אדוניו וילך. He took permission from his master to set out on the way after he made prepared the camels for the journey.

וכל טוב אדוניו בידו, he took with him many silver and golden trinkets. He did not need to ask for permission to do this seeing that all of these items were under his authority on an all year round basis in his capacity of being Avraham’s general manager.

ויקם וילך, on his way.

ויקח...וכל טוב, not literally “all the good,” but most of the good things. The exaggeration here is similar to when the Torah describes כל הארץ, “the whole earth” as going to Egypt to buy grain. (Genesis 41,57) What is meant is: “most people from all over.” There are many such “exaggerations.” What the Torah meant was that Eliezer took with him samples of most of the precious possessions in Avraham’s household in order to show the family of the potential bride that she would be marrying into a wealthy family. Our sages (quoted by Rashi) explain the term וכל טוב as referring to a document in which Avraham had appointed Yitzchok as his sole heir. Eliezer brought this document with him, i.e. בידו, “in his hand.”

אל ארם נהרים, so called because it was the confluence of two rivers.

עיר נחור, this refers to Ur Kasdim where Nachor had remained behind after his father Terach had moved to Charan together with his other son Avraham.