There are so many bad things happening all around the world that some people sometimes blame these on God.

For Christian blogger Matt Moore, however, it is wrong to feel bitter towards God.

"Nobody gets through life without feeling a little short-changed at one time or another," he writes on his blog. "And if we aren't vigilant in protecting our hearts, these pains, losses, and troubles can lead us into bitterness...bitterness toward God."

While it is true that God is in absolute control of all things at all times, it does not necessarily mean that He wants bad things—such as disasters, sickness, death, desertion—to happen.

"Human logic is quick to come to the conclusion that if God allows something, he must heartily desire for that thing to occur. But this isn't true. Logic and reasoning are gifts, but they have their limits; our minds are incapable of comprehending the wisdom and knowledge of God," explains Moore.

He then shares three reasons why people must never feel bitter towards God:

1. God owes us nothing.

"If this isn't a humility inducer, I don't know what is. If you guys are anything like me, you probably walk around with spiritual amnesia — forgetting you were at war with God until he changed your heart, forgetting you still sin against him constantly, forgetting the only thing you 'deserve' is to be in Hell. I know that's a buzz-kill, but it is a foundational truth we must stay grounded in," he says.

Any good thing in people's life is because of God's grace, adds Moore, and only He is in control where to pour out His mercies.

2. God gives us everything in Christ.

Even though God gives and withholds several things in life, He already gave so much when He gave Jesus Christ to mankind, says Moore.

3. This life is just a blip on the radar.

Moore wants to remind people that life on Earth is temporary, so people have to embrace God's eternal perspective. "Brothers and sisters, the world that we live in right now — with all of its ugliness and dissatisfaction because of sin — is going to be burned with fire, and a new world will come rushing in on its heels. In this new world, there will be no more suffering — no sickness, no pain, no loneliness, no loss, no death — but only continuous pleasure and joy," he says.

If people refuse to acknowledge that fact, then they will continue living in discontent and searching for hope and comfort in this hopeless world.

"If we don't put all of our hopeful expectations in the Resurrection and the world to come, our joy and gratitude will fluctuate according to what we do or don't have in this life," explains Moore. "And this is no way for new creations in Christ to live!"