And it came to pass in the evening, that he took Leah his daughter, and brought her to him; and he went in unto her. In the evening - he took Leah his daughter - As the bride was always veiled, and the bride chamber generally dark, or nearly so, and as Leah was brought to Jacob in the evening, the imposition here practiced might easily pass undetected by Jacob, till the ensuing day discovered the fraud.
Related Commentaries of Genesis 29:23
Genesis 29:23
23 And it came to pass in the evening, that he took Leah his daughter, and brought her to him; and he went in unto her.