The Korean Church and the Church of God are obsessed with tithing, but tithing is an abolished Old Testament law. You can read more about tithing in the resources below. 

1. Encyclopedia) Definition of Tithing

http://godnara.egreef.kr/bbs/board.php?bo_table=07_01_eng&wr_id=272 

2.Tithing Origins and Common Sense

http://godnara.egreef.kr/bbs/board.php?bo_table=07_01_eng&wr_id=273 

3.Rebuttals to the Church of God and the Church of Korea's Tithing Claims

http://godnara.egreef.kr/bbs/board.php?bo_table=07_01_eng&wr_id=274 

4.The word of God is freely given.

http://godnara.egreef.kr/bbs/board.php?bo_table=07_01_eng&wr_id=275 

5.Should we tithe to Melchizedek (Jesus)?

http://godnara.egreef.kr/bbs/board.php?bo_table=07_01_eng&wr_id=276 

6. Should unbelievers who don't believe in God tithe?

http://godnara.egreef.kr/bbs/board.php?bo_table=07_01_eng&wr_id=277