John Calvin's Commentary on the Bible - Genesis 24:1
Verse 1 1.And Abraham was old. (1) Moses passes onwards to the relation of Isaac’s marriage, because indeed Abraham, perceiving himself to be worn down by old age, would take care that his son should not marry a wife in the land of Canaan. In this place Moses expressly describes Abraham as an old man, in order that we may learn that he had been admonished, by his very age, to seek a wife for his son: for old age itself, which, at the most, is not far distant from death, ought to induce us so to... read more
Adam Clarke's Commentary on the Bible - Genesis 24:67
Sarah's tent - Sarah being dead, her tent became now appropriated to the use of Rebekah. And took Rebekah, etc. - After what form this was done we are not told; or whether there was any form used on the occasion, more than solemnly receiving her as the person whom God had chosen to be his wife; for it appears from Genesis 24:66 ; that the servant told him all the especial providential circumstances which had marked his journey. The primitive form of marriage we have already seen, ... read more