For all the promises of God find their Yes in Him. That is why it is through Him that we utter our Amen to God for His glory. 2 Cor 1:20.
Yes (Malachi 3:10-12): Rebuke the devourer; Vines will beat fruit; Windows of heaven; Overwhelming.
Amen (Malachi 3:6-9): "Jacobing" God; Test me in this.
The Promise: God's Yes: I will provide in abundance for all of your needs. Our Amen: I will joyfully and gladly give my full tithe and offerings.