Or HaChaim on Genesis 24:30/אור החיים על בראשית כ״ד:ל׳

1 ויבא אל האיש והנה עומד על הגמלים, he came to the man who was still standing by the camels. What do the words: "he was still standing, etc." teach us? According to Yalkut Shimoni 109, Eliezer interpreted Laban's running as an hostile act and he invoked the holy name of G'd as a result of which the camels stood over the well in the air. This is why the Torah describes the camels as "הגמלים על העין." Eliezer himself stood on top of the camels. He called out to Laban from an elevated position whereupon Laban addressed him with the words: "come in blessed one of the Lord!" If nothing unusual had occurred Laban would have reversed the wording of his invitation saying: "Why should you remain outside, come in blessed one of the Lord!"

2Another reason why Eliezer is reported as remaining standing by the camels maybe that the Torah wants us to know that the mere fact that Rebeccah had indicated that there was lots of room in her father's home for Eliezer to spend the night together with his entourage was not enough reason for him to follow her to her home.

3The wording of Laban's invitiation, prefaced by his description of Eliezer as a man blessed by the Lord, indicates that Laban did not invite him wholeheartedly but merely to save him the disgrace of having to remain outdoors, i.e. למה תעמוד בחוץ? Even when the wicked perform an act of graciousness such an act reflects a degree of their basic reluctance to do good.