Why do we have so much trouble and so many issues with keeping the joy of our salvation?
Hebrews 5:9 says this:
 And, [His completed experience] making him perfectly [equipped], He because the Author and Source of eternal salvation to all those who give heed and obey Him.
Just because you’re the creator of something doesn’t mean you’re the only source for it.
How many different companies exist to provide the world with cosmetics, televisions and computers all claiming to be the best at what they do? There are millions of companies, sometimes even within the same corporation, that claim their product is the best. It’s better, stronger, faster, smoother, clearer…you name it.
Not so with salvation. God created Jesus. Therefore, He created salvation. See, salvation and Jesus are synonymous. They are one and the same. There is no salvation without Christ and there is no Christ without God. Salvation is the only commodity that can only be purchased through one place: Calvary.
Salvation is not the absence of sin, but the ability to be cleared of that sin.
Going further into Hebrews, chapter 12, verses 1 and 2 says this:
 Therefore then, since we are surrounded by so great a cloud of witnesses [who have borne testimony to the Truth], let us strip off and throw aside every encumbrance (unnecessary weight) and that sin which so readily (deftly and cleverly) cling to and entangles us, and let us run with patient endurance and steady and active persistence the appointed course of the race that is set before us.
 Looking away [from all that will distract] to Jesus, Who is the Leader and the Source of our faith [giving the first incentive for our belief] and is also its Finisher [bringing it to maturity and perfection]. He, for the joy [of obtaining the prize] that was set before Him, endured the cross, despising and ignoring the shame, and is now seated at the right hand of the throne of God.
Again, these verses point to Jesus being the center of our salvation. Because salvation ensures the ability to be forgiven, it’s important that we see in verse 1 where it says that we should get rid of every “(unnecessary weight) and … sin”. This is where Paul lets us know that there are things besides sin that cause us to not finish the race. Faith serves very little purpose when you’re off course.
Sin is anti-holiness, but the weight is the worldly things that are definitely NOT lightening your load. Sin can be forgiven. It’s the weight that makes us lacking and doing without.
If the purpose of something is unknown, abuse is inevitable. To find out the purpose of something, you must ask the creator. Why is our faith so difficult to find joy in? Why is it so difficult to keep the joy of our salvation? Because we don’t ask the Creator and Finisher of that faith. Personally, if God created the beginning and he has already written the end, how can I be so bold and arrogant as to not trust Him with everything between?
God can create your faith. But, he can’t make you have it or keep it. He’s the creator of faith, and in this situation, He is the only source for it.