"Briefly stated, the Talmud (Kiddushin 29a) states that a father is obligated regarding his son to circumcise him, redeem him (if he is a first-born), teach him Torah, marry him off, and teach him a trade. Some add an obligation to teach him how to swim. A father is further obligated to support his children till adulthood (Talmud, Kesuvos 49b)."
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