yep..those the Lord called children of the devil loved to be seen to tithe and to receive tithes... The law is not of faith and whatsoever is not of faith is sin...
Jesus said, Render unto God what is God's, We are bought and paid for with a price and we have things That do belong to God. Besides, Jesus still receives tithes, so if the tithing door is open, it's a good opportunity to keep blessed.
Whatever the case, folks can keep their money if they like and not honor God for the abundance of all things. There is no law saying we have to tithe, but it is part of what Abraham did and we are blessed with faithful Abraham.