joy

Proverbs 12:14
By fruitful speech a man will be filled with good things, and the work of a man's hands will reward him.

Proverbs 16:13
Righteous lips are a king's delight, and he who speaks honestly is beloved.

Proverbs 24:26
An honest answer given is like a kiss on the lips.

Proverbs 25:11, 12
A word fitly spoken is like apples of gold in settings of silver. . . .

Ephesians 4:29
Let no unwholesome talk come out of your mouths, but only what is helpful for building up the one in need and bringing grace to those who listen.

in due season

Ecclesiastes 3:1
To everything there is a season, and a time for every purpose under heaven:

Isaiah 50:4
The Lord GOD has given Me the tongue of discipleship, to sustain the weary with a word. He awakens Me morning by morning; He awakens My ear to listen as a disciple.

how

1 Samuel 25:32, 33
Then David said to Abigail, "Blessed be the LORD, the God of Israel, who sent you to meet me this day! . . .