Exodus 21:32

If the ox killed a slave, however, it was sufficient if its owner paid his master as compensation the ordinary value of a slave, and suffered at the same time the loss of his animal's services. Another instance of the lower value set upon a slave's life: he is in this case valued simply as a chattel.

a manservant or a maidservant a male or female Slave.

thirty shekels of silver doubtless the average price of a slave at the time It seems that the intrinsic value of a shekel of silver was about 2 Samuel 9 d.(DB.iii. 420 a), so that the silver of 30 shekels would be worth now about £4. 2 Samuel 6 d, (though its purchasing power would be many times greater: ibid.note, and 431 f.). The freeHebrew was valued at 50 shekels (Leviticus 27:3 f.). The same sum was offered as his wages to the prophet who, in the allegory of Zechariah 11, represented the rejected ruler of his people (v.12: cf. Matthew 26:15). Joseph was sold to the Ishmaelites for twenty shekels of silver (Genesis 37:28 b [J]).