Genesis 34:13

“And the sons of Jacob answered Shechem and Hamor deceitfully, etc.] Proposing the marriage of their sister on terms after mentioned, when they never intended it should ever be: Onkelos, Jonathan, and Jarchi interpret it, “with wisdom”, as if they answered wisely and prudently, but the word is never used in a good sense; and if it was wisdom, it was carnal wisdom and wicked cunning, and was disapproved of by plain hearted Jacob: and said: or spoke in this deceitful manner: because he had defiled Dinah their sister; and therefore were filled with indignation at him, and fired with resentment against him, and vowed within themselves revenge upon him.”

“The sons of Jacob answered--The honor of their family consisted in having the sign of the covenant. Circumcision was the external rite by which persons were admitted members of the ancient Church. But that outward rite could not make the Shechemites true Israelites; and yet it does not appear that Jacob's sons required anything more. Nothing is said of their teaching the people to worship the true God, but only of their insisting on their being circumcised; and it is evident that they did not seek to convert Shechem, but only made a show of religion--a cloak to cover their diabolical design. Hypocrisy and deceit, in all cases vicious, are infinitely more so when accompanied with a show of…”

“- Dinah’s Dishonor This chapter records the rape of Dinah and the revenge of her brothers. Genesis 34:1-5 Dinah went out to see the daughters of the land. The Jewish doctors of a later period fix the marriageable age of a female at twelve years and a day. It is probable that Dinah was in her thirteenth year when she went out to visit the daughters of the land. Six or seven years, therefore, must have been spent by Jacob between Sukkoth, where he abode some time, and the neighborhood of Shekerm, where he had purchased a piece of ground. If we suppose Dinah to have been born in the same year with Joseph, who was in his seventeenth year at the time of his being sold as a bondslave Genesis 37:2,…”

“34:13-17 Dinah’s brothers responded to the proposal without waiting for Jacob to respond, and they acted deceitfully. They may not have thought that Shechem and his people would ever agree to the rite of circumcision, but they knew what they would do if the Canaanites accepted (34:25).”