पढाई करना
13 And the blood shall be to you for a token upon the houses where ye are: and when I see the blood, I will pass over you, and the plague shall not be upon you to destroy you, when I smite the land of Egypt.
'A headdress,' as in Exodus 28, signifies intelligence and wisdom.
(सन्दर्भ: Arcana Coelestia 10008)
28 Through faith he kept the passover, and the sprinkling of blood, lest he that destroyed the first-born should touch them.