How do we know all things are of God?

The statement 'all things are of God' stems from the understanding that God is the sovereign creator and sustainer of the universe. In 2 Corinthians 5:18-19, Paul reiterates this by expressing that God was, in Christ, reconciling the world to Himself, reflecting His comprehensive authority over all aspects of existence, including salvation and reconciliation. This suggests that everything, including our redemption and new life in Christ, is orchestrated by God's will and design. Additionally, Romans 11:36 supports this assertion, declaring that 'of him and through him and to him are all things.'