So I opened my mouth,.... To take in the roll, and eat it; he was not disobedient to the heavenly vision; he did all that he could towards eating it, but was not sufficient of himself; and therefore it follows:
and he caused me to eat that roll; he, the Lord, put it into his mouth, caused him to eat it, and tilled him with it, according to his promise, Psalm 81:10. The efficacy and sufficiency to think of good things, to meditate upon them, receive and digest them, are of God; it is he that makes men prophets, and able ministers. The Targum is,
"and I inclined my soul, and he taught me (or made me wise "with") what was written in this roll.''