God's will is God's will

Matthew 6:9-10 (ESV)

9 Pray then like this:

“Our Father in heaven,
hallowed be your name.
10 Your kingdom come,
your will be done,

    on earth as it is in heaven. 

Jesus taught us to pray for God's will to be done on earth as it is in Heaven.    God see our beginning even before birth and our end.  He knows it all.  God knows what we need, but He requires that we must ask.  

Psalm 139:16  (ESV)

¹⁶ Your eyes saw my unformed substance;
in your book were written, every one of them,
    the days that were formed for me,

    when as yet there was none of them. 

Matthew 6:8  (ESV)

8...your Father knows what you need before you ask him.

Matthew 7:11  (ESV)

...how much more will your Father who is in heaven give good things to those who ask him!

God bases His answers upon our asking and if from His eternal perspective that it is truly good for us.  

When we ask, we must trust Him that He give it to us if it is good from His eternal perspective.