4633   donkey
     4672   manger
     5135   blindness, spiritual
     5889   ingratitude
     5892   instinct
     8228   discernment, examples
     8355   understanding

Isaiah 1:1-6

     8705   apostasy, in OT

Isaiah 1:2-3

     1210   God, human descriptions
     6183   ignorance, of God
     8764   forgetting God

Isaiah 1:2-5

     6223   rebellion, of Israel

Isaiah 1:3-4

     8702   agnosticism