" If " is conditional - Yet God is Eternal!

What " if ' can do in your life!   -  It can and will limit your ability or choices... 

Mark 9:22 -

Jesus Heals a Boy with an Evil Spirit
…22"It has often thrown him both into the fire and into the water to destroy him.

 But if You can do anything, take pity on us and help us!"  {notice the "if"}

23And Jesus said to him, "'If You can?'     All things are possible to him who believes."

 24Immediately the boy's father cried out and said, "I do believe; help my unbelief."…

  **  Here is one of the greatest stumbling blocks in the life of every human!  The limiting " if '...

Jamieson-Fausset-Brown Bible Commentary
23. Jesus said unto him, -  If thou can believe — 
The man had said, "If Thou can do anything." 
Jesus replies that. -  all things are possible to him that believes — 
"My doing all depends on thy believing." To impress this still more, 

He redoubles upon the believing: "If thou canst believe, all things are possible to him that believes." Thus the Lord helps the birth of faith in that man's struggling soul; and now, though with pain and sore travail, it comes to the birth, as Trench, borrowing from Olshausen, expresses it. 

Seeing the case stood still, waiting not upon the Lord's power but his own faith, the man becomes immediately conscious of conflicting principles, and rises into one of the noblest utterances on record.

** If we all could come to understand this eternal principle  - our existence would improve vastly!