Present the essence of the biblical passage Galatians 3:24 - "Wherefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith." through a symbolic depiction. Show a traditional law book as a schoolmaster leading a diverse group of people - a Black man, Hispanic woman, Asian child, and a Middle Eastern elder person, representing humanity, towards the cross, symbolizing Christ. Embody this event in a digital art form.