Why do churches take offerings

Taking an offering is an opportunity to proclaim God’s glory

2 Corinthians 9:6–7 ESV

The point is this: whoever sows sparingly will also reap sparingly, and whoever sows bountifully will also reap bountifully. Each one must give as he has decided in his heart, not reluctantly or under compulsion, for God loves a cheerful giver.

Taking an offering is an opportunity for my possessions to harvest righteousness

2 Corinthians 9:8–11 ESV

And God is able to make all grace abound to you, so that having all sufficiency in all things at all times, you may abound in every good work. As it is written, “He has distributed freely, he has given to the poor; his righteousness endures forever.” He who supplies seed to the sower and bread for food will supply and multiply your seed for sowing and increase the harvest of your righteousness. You will be enriched in every way to be generous in every way, which through us will produce thanksgiving to God.

Taking an offering reminds me that only Christians fund the work of the gospel.

2 Corinthians 9:12–15 ESV

For the ministry of this service is not only supplying the needs of the saints but is also overflowing in many thanksgivings to God. By their approval of this service, they will glorify God because of your submission that comes from your confession of the gospel of Christ, and the generosity of your contribution for them and for all others, while they long for you and pray for you, because of the surpassing grace of God upon you. Thanks be to God for his inexpressible gift!