Tithe means tenth. Abraham gave ten percent of his income back to God to show that he honored God as his provider.
His son Isaac tithed and reaped one hundredfold the same year he sowed. God rewarded his seed. Think like a sower. Your seed is anything you give to God. Your harvest is anything God gives back to you. Habitual sowing guarantees habitual reaping.
“Bring ye all tithes into the storehouse, that there may be meat in mine house, and prove me now herewith, saith the Lord of hosts, if I will not open you the windows of heaven, and pour you out a blessing, that there shall not be room enough to receive it.”
“Upon the first day of the week let every one of you lay by him in store, as God hath prospered him, that there be no gatherings when I come.”
(1 Corinthians 10:2)