Pay your tithe regularly

God’s Word concerning needs is very clear in the Old Testament.
source

“Bring ye the whole tithe into the store-house, that there may be food
in my house, and prove me now herewith, saith Jehovah of hosts, if I
do not open you the windows of heaven, and pour you out a blessing,
that there shall not be room enough to receive it” (Mal. 3:10), said
God to the people of Israel. This gives the same principle we have
just explained.
The people of Israel were in deep poverty. If they had tried to
practice Malachi 3:10, they would probably have said that if their ten
loads of rice were insufficient, how could nine loads possibly be
sufficient; if their ten bags of flour were not enough, could nine bags
be enough? Such foolish words are those spoken by natural men.
God reproved the people of Israel by saying, “With men this is
impossible, but with God all things are possible” (Matt 19:26).
“Bring ye the whole tithe into the store-house, . . . and prove me now
herewith,. . . if I do not open you the windows of heaven, and pour
you out a blessing, that there shall not be room enough to receive it.