Genesis 29:23-27

29:23 In the evening he brought his daughter Leah to Jacob, and Jacob had marital relations with her. 29:24 (Laban gave his female servant Zilpah to his daughter Leah to be her servant.)

29:25 In the morning Jacob discovered it was Leah! So Jacob said to Laban, “What in the world have you done to me! Didn’t I work for you in exchange for Rachel? Why have you tricked me?” 29:26 “It is not our custom here,” Laban replied, “to give the younger daughter in marriage before the firstborn. 29:27 Complete my older daughter’s bridal week. Then we will give you the younger one too, in exchange for seven more years of work.”