God may give a different measure of Grace for many different types people. He may give a different measure of Grace on one's income and resources. Some are rich and some are poor. In fact, many unbelievers are rich in resources as well. He is God and it is through His sovereign Will He dispenses that measure of financial Grace to determine what He may give you or anyone else. It is His right. He is God. 

For many of His children, the amount of our resources (income/economy) may depend on many factors. It may depend on our obedience. It may depend on where we are at with our walk with HIM. It may depend on our spiritual maturity. It may depend on His purpose for our lives. It may depend on many things. God uses our finances as a tool to mold, direct us. and for the purposes of His Kingdom. He gives based on His Will, desire, and purpose. He is God. He owns everything. He is the owner. 

His children must all tithe the same rate! We cannot determine on our own what to give back to God. We are not God. How can one determine what to tithe respect to another person? Are we to trust our own hearts when the bible says our own hearts are wicked? Are we the owner of our own resources to determine what we will tithe to God what is rightfully His? If we determine such amount on our own, are we not playing God? Therefore, whether you are rich or poor, you are all called to give the same. God is no respecter of persons. We are all called to give the same rate in tithe. We are all called to tithe 10% of our income. Some may have been given a greater measure of grace in their resources than others but both parties are required to give back the same rate because we are not God to determine our own rate. 

This is why many of God's children have not had the devourer rebuked as the enemy continues to destroy the fruit of their grounds. And this is why our finances may be cursed because we are not following God's commandments but trying to command HIM by determining what amount we are going to give HIM!

Malachi 3:10-12 (AMP) Bring all the tithes (the whole tenth of your income) into the storehouse, that there may be food in My house, and prove Me now by it, says the Lord of hosts, if I will not open the windows of heaven for you and pour you out a blessing, that there shall not be room enough to receive it.11 And I will rebuke the devourer [insects and plagues] for your sakes and he shall not destroy the fruits of your ground, neither shall your vine drop its fruit before the time in the field, says the Lord of hosts.12 And all nations shall call you happy and blessed, for you shall be a land of delight, says the Lord of hosts.

Fire of God Ministries 
Steve Yong Kim