Through Inability...

"Now to him who is able to keep you from stumbling and to present you blameless before the presence of his glory with great joy, to the only God, our Savior, through Jesus Christ our Lord, be glory, majesty, dominion, and authority, before all time and now and forever. Amen." -Jude 1:24-25

"There is nothing certain in a man's life but that he must lose it." -Meredith Owen

Let's face it. We control nothing. Not the weather, not wars, not the stock market--not even whether or not our loved ones will keep loving us. The pain of a broken marriage, a church split, the loss of a loved one--there are infinite levels of "sure things" from which we can fall.
That's why it's such a relief when we surrender to the fact that God is the only one who is able to keep us from falling. Not our money, not our best intentions--nothing except our Heavenly Father will keep us safe.
We have to put our trust in Him first, living a life of obedience so that we allow Him to be in all the details. If you keep in mind the eternal value of your actions, obeying Him first, you'll know that whatever circumstances come your way, He ordained them.
There is only one true God who can keep us from falling. He is the only one who can hold all things in His hand. You can't put your security in your marriage, your children, your job, your future...you can only be dependent on a God who has always been and who will always be.
Our inability to keep ourselves from falling is the very thing that turns us to a God who is, in fact, able. It's one of the reasons Jude was warning the early church to cleave to Christ and not be distracted by the disability of man. When we are reminded that we are unable and He is able, we find ourselves free, leaning more and more on Him. And through our leaning, God reveals His glorious stability.

"I have held many things in my hands and I have lost them all. But whatever I have placed in God's hands, that I still possess." -Martin Luther
(Glory Revealed, David Nasser)