The Lord knows how to repay us, He is generous and kind in how He gives back to us for the good we do. We can trust Him with our sacrifice. I remember hearing of a man who decided to give more than a tenth for his tithe. He found he had plenty left over, so he gave even more, and still had plenty left over. Eventually, he found himself living on ten percent and giving away ninety percent. He flipped the numbers and found he still had plenty to live on. God rewards those who trust Him.