Why does God use the imagery of light in salvation?

The imagery of light in Scripture serves as a powerful symbol of spiritual awakening and enlightenment. Genesis 1 depicts God bringing light into chaos, paralleling how He illuminates the hearts of the redeemed. John 1:4 states that 'in Him was life, and the life was the light of men,' highlighting that Christ is not only the source of life but also the embodiment of truth. When God declaratively says, 'Let there be light,' it represents His sovereign action in dispelling darkness—both in creation and in the hearts of sinners who receive Christ as their Savior. Through this light, believers are granted the ability to perceive God's glory and truth.