The tithe is giving 10% of your income, the product of Your work, to the Lord and His work. Contributions are anything beyond the 10%. This is often referred to as a gift, but it’s not a gift. It is His and that is why He uses the word 'rob' when we do not give those tithes and offerings. It is not robbing someone to not give them a gift. Robbing is when we take what is theirs. 100% of what we have is from God and belongs to God, and we give the tithe as evidence of our understanding of this. We are stewards of what He has given. A steward is a manager of the owner’s stuff for the owner’s purposes. Now with that as a background listen to Jesus. referring to the tithe, the 10%. And again, notice, Jesus says that it is His. Now when God calls for us not to rob Him, His goal is not getting money. His goal is blessing. Show that you understand everything is from Him, show that you respect that as the owner He can call for the tithe, show that your faith is in Him, not money.