It was common practise in the old testament to present mysteries of God in seals due to the nature of the covenant. The covenant was designed to be a practice in prophetic actions declaring of another more superior covenant and promise. The Spirit of God was not yet poured on earth therefore understanding was only of laws. These laws were not just living instructions. They hid a more deep spiritual aspect concerning the relationship of men and God. They were seals and veiled our current covenant.
