Hi, Elisha!

 Hello Seung Ho! I am glad to hear that you had fun as much as I did. I can\'t wait to practice with you again tomorrow!~

You did an amazing job in writing this composition. Here are the words you may use for your next one; impeccable and enmity. Please try to use this idiomatic expression as well; to hit the nail on the head. Good luck! ^^~

-T. Elisha

As you know that my wife is a faithful christian.

>> As you know, my wife is a faithful Christian.

When I proposed her to marry me, she made me promise that I would believe in God.

>> When I proposed to her, she made me promise to believe in God.

I promised her at once.

>> correct!

After we married, I went to church with her every Sunday for 9 years.

>> After we got married, I went to church with her every Sunday for 9 years.  

But it was meaningless because I didn\'t believe in God.

>> correct!

 I mandatorily went to church to keep the promise that I made with my wife.

>>  I mandatorily went to church to keep the promise that I made to my wife.
When the marriage passed 9 years, I decided not to go to church.

>> 9 years passed after getting married, I decided not to go to church.

No more I want to act pretentiously.

>> I no longer wanted to act pretentiously.

or:

>> I no longer wanted to pretend. 

So I declared to my wife that I would not to go to church from this Sunday.

>> I told my wife that I will no longer accompany her to church starting that Sunday.

 she was very angry and sad.

>> correct!

 she asked me to keep the promise that I made with her before we married.

>> she asked me to keep the promise that I made before we got married.

But I did not change my mind for her.

>> correct!

Because I was very painful to go to church without belief every Sunday.
>> It was painful for me to go to church every Sunday without a belief.
After I declared, we had many arguments about the Christian religion and the church where she used to go to.

>> After I said that, we had many arguments about the Christian religion and the church where she used to go to.

I thought the church was corrupt.

>> correct!

 Someday, another 9 years passed, I seriously criticized the church that she had been going for a long time. 

>> Another 9 years passed. One day, I seriously criticized the church where she had been going for a long time. 
 We quarreled so hardly.

>> We quarreled badly.

At that time I was too drunk.

>> correct!

she suddenly asked that if she change her church, I would go to the church again.

>> She suddenly asked that if she changes her church, would I go to the church again.

 I didn\'t hesitate to answer that I would go to the church from next Sunday.

>> correct!

 I don\'t know until now why I answered like this.

>> correct!

My wife chose another church and left her church where she had been going since 2010.

>> correct!
For the next week after the quarrel, I stayed in malaysia because of my business.

>> The week after we quarreled, I stayed in Malaysia because of my business.

  I came back to Korea on Sunday morning.

>> I came back to Korea on a Sunday morning.

 My wife thought that I could not go to the new church because she saw how tired I was.

>> correct!

 But I went to the church with her.

>> correct!

she was touched.
>> correct!
I worshiped again in nine years.

>> I worshipped again after 9 years.

While I worshiped I shed tears so much.

>> While I was worshipping, I shed so much tears.

I don\'t know why I did.

>> correct!

For a year after my first worship , I struggled to refuse I was being became a Christian.

>> correct!

I didn\'t want to be a Christian.

>> correct!

But I couldn\'t refuse that myself.

>> correct!

 I was changed gradually by some power.

>> correct!

or >> I was gradually changed by some power.

I started to read Bible and to sing hymn in my home and office.

>> I started to read the Bible and to sing hymns at home and in my office.

shedding tears, I prayed with my wife almost every night to repent to my life that was sinful.

>> While shedding tears,  I prayed with my wife almost every night to repent for living a sinful life.

Of course recently I don\'t shed tears any more when I pray.

>> correct!
 This is how I believed in GOD. 

>> correct!

or >> This is how I started to believe in God.
 Thank you for listening to my composition.
>> correct!