What are you tithing for?

Take heed that ye do not your alms before men, to be seen of them: otherwise ye have no reward of your Father which is in heaven.

Matthew 6:1 KJV

Jesus is tell everyone to not tithe, to give, to give alms for men. Do not do anything in this world for the approval of men.
You do things for God and not for man. It is he who will reward you.