The stand out verse for me right now is 1 Samuel 3: 19:
The Lord kept Samuel's words from being useless. He was with Samuel and He caused Samuel's words to be fruitful; to accomplish His purposes.
Oh, to be like Samuel! To be so close to God, so intune with Him, so obedient, that He would let none of my words fall to the ground. I want my words -- especially those that speak of Him -- to mean something and not be just idle words that fall by the wayside. The Lord gives wisdom and understanding, and will cause my words to be meaningful and true if I am surrendered to Him. If He has First Place.
Image from Heartlight.org