2 Corinthians 9:6-7
Consider this: whoever sows sparingly will also reap sparingly, and whoever sows bountifully will also reap bountifully. Each must do as already determined, without sadness or compulsion, for God loves a cheerful giver.
This verse teaches us that it is not only what we give, but the acceptable attitude with which we should give.
Bring the whole tithe into the storehouse, that there may be food in my house. Put me to the test, says the LORD of hosts, and see if I do not open the floodgates of heaven for you, and pour down upon you blessing without measure!
This verse comes with a promise: Consistently give your tithe and the Lord will reward your faithfulness whether financially or spiritually.
2 Corinthians 8:7
Now as you excel in every respect, in faith, discourse, knowledge, all earnestness, and in the love we have for you, may you excel in this gracious act also.
This verse on giving teaches us that giving is both an act of grace as well as endeavor worth excelling in.