It will achieve whatever it is sent to do..

God’s Word says that it will go forth and will achieve whatever He sends it to do. 
We share it. We sow the seed of the Word of God. And it is a sharp sword that cuts to the heart of things even hidden deep beneath the surface – not to leave us wounded and dying but to cut out the disease. Yes, children of God, the Word of God is a refining fire that heals and seals life and healing where death once reigned. But there really are servants of a different master – and the Word of God serves it’s purpose there as well – either leading to repentance or warning of the pending destruction. 
So it it is hot or cold, sanitizing or refreshing, to those who would hear — but is useless in the ears of those who are deaf to the Spirit of Truth. Hear the Word of God.

For as the rain and the snow come down from heaven 

and do not return there but water the earth, 

making it bring forth and sprout, 

giving seed to the sower and bread to the eater,  

so shall MY WORD be THAT GOES OUT FROM MY MOUTH; 

IT SHALL NOT RETURN to me EMPTY, 

but IT SHALL ACCOMPLISH THAT WHICH I PURPOSE, 

AND SHALL SUCCEED IN THE THING FOR WHICH I SENT IT.

 – Isaiah 55:10‭-‬11 ESV

Hear, my son, and accept my words, 

that the years of your life may be many.  

I have taught you the way of wisdom; 

I have led you in the paths of uprightness.  

When you walk, your step will not be hampered, 

and if you run, you will not stumble.

Keep hold of instruction; do not let go; 

guard her, for she is your life.  

Do not enter the path of the wicked, 

and do not walk in the way of the evil.

Avoid it; do not go on it; 

turn away from it and pass on.  

For they cannot sleep unless they have done wrong; 

they are robbed of sleep unless they have made someone stumble.  

For they eat the bread of wickedness 

and drink the wine of violence.  

But the path of the righteous is like the light of dawn, 

which shines brighter and brighter until full day.  

The way of the wicked is like deep darkness; 

they do not know over what they stumble.  

My son, be attentive to my words; 

incline your ear to my sayings.  

Let them not escape from your sight; 

keep them within your heart.  

For they are life to those who find them, 

and healing to all their flesh.

 – Proverbs 4:10‭-‬22 ESV