Sirach 26:19–21

¹⁹My son, keep the flower of thine age sound; and give not thy strength to strangers. ²⁰When thou hast gotten a fruitful possession through all the field, sow it with thine own seed, trusting in the goodness of thy stock. ²¹So thy race which thou leavest shall be magnified, having the confidence of their good descent.