How do we know that God works through signs and wonders?

The plagues in Egypt serve as powerful signs of God's authority intended to compel Pharaoh to release God's people. Exodus 7 illustrates how God performed wonders through Moses and Aaron, demonstrating His sovereignty over creation and His ultimate intention to deliver His people. This aligns with the broader biblical theme where signs signify divine intervention, showcasing God's nature and purpose. Furthermore, the inability of Egyptian magicians to reverse the wonders highlights that only God possesses true power, thus reinforcing His role as the ultimate authority. This teaches us that believers can trust in God’s active presence through miraculous works, affirming His power in every aspect of life.