Romans 12:1 says...

So brothers and sisters, since God has shown us great mercy, I beg you to offer your lives as a living sacrifice to him. Your offering must be only for God and pleasing to him, which is the spiritual way for you to worship.

“We exist as a body of baptized believers in Jesus Christ and have as our mission; to carry out the Great Commission, and serve as witnesses to the world of God’s saving grace in Christ through the presence, and power of the Holy Spirit, as found in the Gospel of Matthew 28:19-20.

God’s people have always been characterized by giving, but the way they’ve given has changed over time. For example, people no longer bring goats, sheep, calves and grain to god as they did in the Old Testament. Your financial gift is an offering to God. It is theologically sounder since Jesus has made the ultimate sacrifice.