Proverbs 15:23
A man has joy by the answer of his mouth: and a word spoken in due season, how good is it!
Nave's Topical Index—AKJV

Isaiah 50:4
The Lord GOD has given me the tongue of the learned, that I should know how to speak a word in season to him that is weary: he wakens morning by morning, he wakens my ear to hear as the learned.
Nave's Topical Index—AKJV