But to which of the angels ¹  has he ever said, “Sit at my right hand until I make your enemies a footstool for your feet”? ² 

So God ¹  again ordains a certain day, “Today,” speaking through David ²  after so long a time, as in the words quoted before, ³  “O, that today you would listen as he speaks! ⁴  Do not harden your hearts.”

For though you should in fact be teachers by this time, ¹  you need someone to teach you the beginning elements of God’s utterances. ²  You have gone back to needing ³  milk, not ⁴  solid food.