4 The Sovereign LORD has given me a well-instructed tongue, to know the word that sustains the weary. He wakens me morning by morning, wakens my ear to listen like one being instructed.

Read Isaiah 50:4 Using Other Translations

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.
The Lord GOD has given me the tongue of those who are taught, that I may know how to sustain with a word him who is weary. Morning by morning he awakens; he awakens my ear to hear as those who are taught.
The Sovereign LORD has given me his words of wisdom, so that I know how to comfort the weary. Morning by morning he wakens me and opens my understanding to his will.