Moreover, your very giving proves the reality of your faith, and that means that men thank God that you practise the Gospel that you profess to believe in, as well as for the actual gifts you make to them and to others. J.B. Phillips.
As a result of your ministry, they will give glory to God. For your generosity to them and to all believers will prove that you are obedient to the Good News of Christ. NLT
Obedience does not make anyone a Christian. We cannot be obedient enough to save ourselves. Nevertheless, authentic Christianity shows itself in obedience. True believers not only ”profess” the Gospel, but possess it’s reality, and demonstrate it in godly living.
Giving is a part of this.
Christians are ”…created in Christ Jesus to do good works, which God prepared in advance for us to do” (Eph.2:10). Our giving is one of these ”good works”.
James famously says that ”…faith without deeds is dead” (Jas.2:26). Christian giving is one of these deeds.
So, says Paul, those who are the recipients of our giving are full of praise to God, not only for the gifts themselves, but to see the work of God in human lives. When the natural selfishness and acquisitiveness of human flesh is crucified, and there is an overflow of generosity, this is nothing other than a work of grace. People recognise it, are inspired by it, and are deeply thankful for it.
John Macarthur said, ” God made all of His creation to give. He made the sun, the moon, the stars, the clouds, the earth, the plants to give. He also designed His supreme creation, man, to give. But fallen man is the most reluctant giver in all of God’s creation.”
However, conversion supernaturally changes the human heart, and when others see this and benefit from it, they want to thank God.