The Bible says the top competitor for our commitment to Jesus is money. Giving allows us to demonstrate that Jesus is more important to us than material things.
We believe the everything we have comes from God; our finances, our jobs, everything. Which means the tithe—which just means “tenth”—already belongs to God, we are just returning it to Him. The Bible says we can take the promises of God to the bank. When we bring our first and best back to God, He promises to bless the rest.