'Untrained' in the Bible

"I've certainly heard Ephraim shuddering with grief as they said, "You have disciplined me, and I'm disciplined like an untrained calf. Restore me, and let me return, for you are the LORD my God.

Even though I may be untrained as an orator, I am not so in the field of knowledge. We have made this clear to all of you in every possible way.