Yahweh's Word Does Not Return Void 

Prayer to me is still a mystery, in that, many times when I am praying I feel redundant and wonder if Yahwh is bored with hearing me say and ask the same thing, over and over....and...do I need to, am I supposed to ask over and over?
I have always viewed prayer as conversation with Yahweh, just sitting with Him and talking, and trying to listen more than I talk. I have never wanted it to become some kind of formula or act of religion, I wanted and want connection. But we don't always feel that connection do we? So we press through, in faith and sometimes doubt but He is faithful, always, even when we don't yet know it.
So as I am talking to Him about all this , I am reminded of all the scriptures, all the wonderful promises in the Bible, and you know how your mind works, you can think a thousand thoughts a minute sometimes, so here I am, my mind flooded with hope and doubt all at the same time. Part of me is saying, Yes! He is my refuge, my safe fortress and another part of me (thanks in part to the enemy) Yeah sure, what about all the "believers" who are persecuted and killed for their faith, where is your god then? Aye, aye, aye my mind and heart were in such conflict but I heard in my spirit "MY word does not return void". So I grabbed my bible and went to Isaiah 55:10-11.
Isaiah 55:10–11 says, “As the rain cometh down, and the snow from heaven, . . . So shall my word be that goeth forth out of my mouth: it shall not return unto me void” (KJV). 

Isaiah 55:10-11 
10 As the rain and the snow
    come down from heaven,
and do not return to it
    without watering the earth
and making it bud and flourish,
    so that it yields seed for the sower and bread for the eater,
11 so is my word that goes out from my mouth:
    It will not return to me empty,
but will accomplish what I desire
    and achieve the purpose for which I sent it. (NIV)

I knew this scripture but it hit me in a different way as I read it this time. Wait, wow, ok...so . Rain and snow come from above and do not return back above, (you can't take it back) without accomplishing their purpose which  produces great benefit in the growth of crops, the refreshment of souls, and the sustaining of life.

Yahweh compares His Word to the rain and snow because, like the precipitation, Yahweh's word always fulfills His good purposes. He will never go back on His word, so we can know and trust that it will accomplish what He desires. 
11 so is my word that goes out from my mouth:
    It will not return to me empty,
but will accomplish what I desire
    and achieve the purpose for which I sent it. (NIV)

My spirit was jumping up and down! Yes! Yes! Yes! How incredible is this? His Word is alive and life giving and He will not take it back, but it will work and accomplish in us His good will. It goes deep into the soil of our hearts and creates and mends and grows inside of us, changing us into His likeness. Amen?

When Yahweh said that His Word will not return void, we can know that :

He has an intention for His Word.
Every word He gave humanity is purposeful and was given for a reason. Like the rain and snow, Yahweh's word brings forth life (John 6:63) and produce good fruit in our lives. Through His Word, we know that Yahweh loves us and that Yah'shua died to free us from sin and death; we also learn how to live in light of those truths.

We are encouraged to abide in His Word, 
allowing it to absorb into our lives, soaking it up as the ground soaks up the rain and snow. Yahweh's Word will always accomplish what He desires, whether it is teaching, correcting, training, leading us to Him, revealing our sin, or some other good and profitable end.

We understand that Yahweh is sovereign.  
The promise is that Yahweh's Word will accomplish what He wants it to, not necessarily what we want it to. We may share the Word with the purpose of changing someone’s mind—and the person’s mind doesn’t change. Was God’s Word void? No, but our personal goals may have been different from Yahweh's. Like the wind that “blows wherever it pleases,” the Holy Spirit moves in mysterious ways (John 3:8). And Yahweh may use His Word in surprising ways, at surprising times, and in surprising people. We can’t predict exactly how Yahweh will use His Word any more than meteorologists can predict with certitude the rainfall and snowfall.

Yahweh's Word will not return void. It is too powerful. When Yahweh said, “Let there be light,” the immediate result was that “there was light” (Genesis 1:3). When Yah'shua said, “Peace! Be still!” the wind ceased and the sea calmed (Mark 4:39). Yahweh's Word will always prosper; Yahweh will succeed, and those who receive His Word will be overcomers as well (1 John 5:4).

Amen and amen!