Charles Spurgeon Commentary Isaiah 50:4

"The Lord Jehovah hath given me the tongue of them that are taught, that I may know how to sustain with words him that is weary: he wakeneth morning by morning, he wakeneth mine ear to hear as they that are taught." — Isaiah 50:4 (ASV)

The Lord GOD hath given me the tongue of the learned, that I should know how to speak a word in season to him that is weary: he wakeneth morning by morning, he wakeneth mine ear to hear as the learned.

Just as scholars learn from their teacher. It was a wondrous stoop for the Omnipotent to become a learner; but he descended lower than that.