The asp; a most fierce and poisonous serpent, Deuteronomy 32:33 Job 20:14,16, which also will not be charmed by any art of man, Psalms 58:5. The cockatrice; a serpent of more than ordinary cunning and cruelty, Proverbs 23:32. The meaning is, They shall not fear to be either deceived or destroyed by those who formerly watched all opportunities to do it.
Related Commentaries of Isaiah 11:8
Isaiah 11:8
8 And the sucking child shall play on the hole of the asp, and the weaned child shall put his hand on the cockatrice' den.