After his arrival in the home of Rivka's family, Avraham's servant recounts his experiences that day, his request that Rivka give him water and her generous offer of water to both him and his camels. He then tells the family that after Rivka completed the job of drawing water for the camels, he inquired as to her family background and discovered that she is from Avraham's family, whereupon he gave her jewelry as a sign of her selection as Yitzchak's wife. Rashi (to 24:47) notes a slight inaccuracy in the servant's story. A close reading of the actual narrative of his experiences reveals that he gave Rivka jewelry even before he asked who she was (see 24:22-23). Here, when the servant retells the story, he describes that he first asked her about her family and only thereafter gave her the jewelry. Rashi explains that he servant did not want the family to question his strange conduct - determining Rivka's selection before even finding out whether she has suitable family background. He therefore reversed the order.
Interestingly, however, the rest of the account the servant reports accurately. At least one detail we would have perhaps expected him to distort, consistent with the inaccuracy we have just seen. Namely, as soon as Rivka tells him that she is a cousin of Yitzchak, he immediately expresses thanks to God: "Then I bowed in homage to the Lord and blessed the Lord, the God of my master, Avraham, who led me on the right way to get the daughter of my master's brother for his son" (24:48). Would not this, too, seem a bit strange? How could he praise God for his successful trip even before securing the family's consent to the match? As we know from earlier in the parasha (24:5), the servant expressed concern that the chosen woman will not wish to resettle in Canaan in order to marry Yitzchak. Why, then, did he praise God already at this point, before he knows with certainty that his task is fulfilled?
Rav Moshe Feinstein zt"l (Kol Ram, vol. 2) answers that one must thank the Almighty not only when he experiences good fortune, but even when God grants him the ability to attain good fortune, when He brings about a situation which allows for the possibility of blessing. God will not always present us with precisely what we want, when we want it, in the most convenient manner possible. He expects us to do our share. Therefore, even a window of opportunity is cause for an expression of gratitude and appreciation. Avraham's servant had no need to distort this detail, as he felt it obvious that even the situation which allowed for the possibility of his successful mission warranted his emphatic praise of God.