창세기 24:17의 주석

וירץ העבד לקראתה AND THE SERVANT RAN TOWARDS HER — because he saw that the waters rose in the well when she approached it (Genesis Rabbah 60:5).

AND THE SERVANT RAN TO MEET HER. Rashi comments: “Because he saw that the waters rose in the well when she approached it.” In Bereshith Rabbah the Rabbis said,¹¹⁷60:6. “And she filled her pitcher, and came up.¹¹⁸Verse 16 here. All the women went down and filled their pitchers from the well. But this one, as the waters saw her they immediately rose. The Holy One, blessed be He, said to her, ‘You are a sign of blessing to your children.’”¹¹⁹When Israel wandered in the desert, the waters in the well would rise as soon as they approached it. See Numbers 21:17 and Midrash Rabbah, ibid.
It would appear that the Rabbis derived this interpretation upon observing the language, And she filled her pitcher, and came up,¹¹⁸Verse 16 here. for it does not say, “and she drew water and filled [the pitcher].” Now this miracle happened to her only the first time for afterwards it is written, and she drew.¹²⁰Verse 20 here. The servant, when recounting the day’s events to them, said: And she went down unto the well, and drew water.¹²¹Verse 45 here. That was because he thought that perhaps they would not believe in the miracle.

הגמיאיני נא מעט מים, "let me please sip a little water, etc." Eliezer actually asked for less than he had originally stipulated, seeing he meant to ask her "to incline her jug in order to let him drink (extensively)." Not only did he only ask to take a sip, but he stressed that he wanted only a little water. He also failed to ask her to incline her jug in order to give him to drink. Our sages (Bereshit Rabbah 60,5) explain that Eliezer saw that the waters rose towards Rebeccah. This is when he realised that she was not a Canaanite girl and that she was destined for Isaac. He became afraid that he might forfeit an opportunity by insisting on the conditions he had made in his prayer, and proceeded to ask for the minimum possible. He wanted to make it easy for the girl to meet his request.