Jacob Gives Rachel the Secret Signs Against Laban's Deceit

Midrash Aggadah, Genesis 29:12

"And Jacob told Rachel." Jacob said to her, "Marry me." She said to him, "Yes. But my father is a deceiver, and you will not be able to prevail over him." Jacob said to her, "I will act with him in deceit if he is a deceiver; and if he is an honest man, I am the son of an honest man." Likewise she said to him, "In any case, even so, you will not be able to prevail over him." Immediately he handed over to her signs.

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