Your faith in God has incredible potential to make your life complete. To take you from the place of deficiency, to the place of being perfect and complete, lacking nothing.
James puts it this way in James 1:2-4,
My brethren, count it all joy when you fall into various trials, knowing that, that you may be perfect and complete, lacking nothing.
Faith in God can make you complete, but your faith will be contested. It will be opposed, even as we read here. Your faith will go through the fire of trial.
If you lack spiritually in your life, you can get to the place of holiness. If you are lacking materially, you can get to a place where your needs are met. Whatever your lack, your faith in God has the potential to take you from where you are, and where you are lacking, to this place that the Bible speaks of…being perfect and complete, lacking nothing.
But, the path to that completeness is one of trial. Your faith will not get you there until it first goes through testing. You do have an adversary. You will be opposed. The Bible says, Your adversary, the devil, walks about as a roaring lion seeking whom he may devour.
The devil knows what is at stake, and he will do all he can to keep you from trusting God. So as your faith encounters the turbulence of trials, do what James says, and count it all joy. You are on your way to becoming perfect and complete in Christ.