פּירוש אויף בראשית 24:11

ויברך הגמלים means HE MADE THEM KNEEL (Genesis Rabbah 59:11).

ויברך הגמלים, “he made the camels kneel down.” Camels have two sets of knees. They therefore have to perform two acts of kneeling, before being able to drink. We have learned more details in the Talmud Chulin 76.

ויברך הגמלים, a camel has two knees one above the other; therefore it needs two motions to go down on its knees and because of its height it cannot drink before having thus lowered itself to the level of the trough. This is what the sages referred to in Chulin 76 when they said וכנגדו בגמל ניכר, that a spot known as the ארכובה in cattle is clearly recognisable on the foreleg of a camel.