Song of Songs 8:6-7

Place me like a seal over your heart, like a seal on your arm; for love is as strong as death, its jealousy unyielding as the grave. It burns like a blazing fire, like a mighty flame. Many waters cannot quench love; rivers cannot wash it away. If one were to give all the wealth of his house for love, it would be utterly scorned.

Love for God burns like a blazing fire that cannot be quenched. It is the strongest and greatest of all powers. To love the Lord our God is to be a blazing fire. To be like the burning bush. To be like a lamp whose light will never go out.