Spinoza would reject the idea that people “contain a fragment of God” because it implies God is divisible, which contradicts his view of God as an infinite, indivisible substance (Deus sive Natura—“God or Nature”). Instead, he would argue that all things, including people, are modes or expressions of God’s essence in finite ways. Rather than containing a piece of God, we exist within God as manifestations of divine substance, each expressing its nature according to necessity.
Each of you should give what you have decided in your heart to give, not reluctantly or under compulsion, for God loves a cheerful giver. 2 Corinthians 9:7 NIV