Bring ye all the tithes into the storehouse, that there may be meat in mine house, and prove me now herewith, saith the Lord of host, 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.

Malachi 3:10

And he (Jesus)  sat down opposite the treasury and watched the people putting money into the offering box. Many rich people put in large sums. And a poor widow came and put in two small copper coins, which make a penny. And he called his disciples to him and said to them, “Truly, I say to you, this poor widow has put in more than all those who are contributing to the offering box. For they all contributed out of their abundance, but she out of her poverty has put in everything she had, all she had to live on.”

Mark 12:31-34

Give, and it shall be given unto you; good measure, pressed down, shaken together, and running over, shall men give unto your bosom. For with the same measure that ye mete withal it shall be measured to you again.

Luke 6:38