Value of Words.

(O)ur words belong to the Lord. He is the Great Speaker.
The wonder, the significance, the glory of human communication
has its roots in his glory and in his decision to talk with us
and allow us to talk with him and others. God has unlocked the
doors of truth to us, using words as his key. The only reason
we understand anything is that he has spoken. Words belong
to God, but he has lent them to us so that we might know him
and be used by him.
This means that words do not belong to us. Every word we
speak must be up to God’s standard and according to his design.
They should echo the Great Speaker and reflect his
glory. When we lose sight of this, our words lose their only
shelter from difficulty. Talk was created by God for his purpose.
Our words belong to him.

Paul Tripp - War of Words Chapter 1 - pg. 15.