Render an image illustrating the quote from Exodus 4:12 - 'Now therefore go, and I will be with thy mouth, and teach thee what thou shalt say'. Visualize this as a person being guided and enlightened, set against an ethereal backdrop. The image should incorporate elements of divine light and serenity, thus capturing the mood of divine intervention. Format-wise, emulate the aesthetics of early 19th-century religious paintings, using digital art mediums.