1 In the year that king Uzziah died I saw also the Lord sitting upon a throne, high and lifted up, and his train filled the temple.
2 Above it stood the seraphims: each one had six wings; with twain he covered his face, and with twain he covered his feet, and with twain he did fly.
3 And one cried unto another, and said, Holy, holy, holy, is the Lord of hosts: the whole earth is full of his glory.
4 And the posts of the door moved at the voice of him that cried, and the house was filled with smoke.
5 Then said I, Woe is me! for I am undone; because I am a man of unclean lips, and I dwell in the midst of a people of unclean lips: for mine eyes have seen the King, the Lord of hosts.
-Isaiah, the mighty man of God who faced down soldiers and kings, upon entering into the presence of God Himself completely lost it and could only pronounce woe and doom on himself. He was right to react this way, just as the Seraphim are right to continuously cry Holy, Holy, Holy; not because they’ve been ordered to do so, but because when faced with God Himself, this is the only reaction they can have. Such glory and majesty is unmatched anywhere in the universe. Who could possibly be worthy to enter into such a presence? I’m glad you asked. The Bible tells us that “no man hath ascended up to heaven, but he that came down from heaven, even the Son of man which is in heaven.” (John 3:13) Jesus is worthy to enter into the presence of God the Father because Jesus is the Beloved Son in whom the Father is well pleased. (Matthew 3:17) But Jesus doesn’t enter empty-handed, He makes provision for all of us as well; “neither by the blood of goats and calves, but by his own blood he entered in once into the holy place, having obtained eternal redemption for us.” (Hebrews 9:12) Seeing that we have such a High Priest, Jesus Christ, “let us therefore come boldly unto the throne of grace, that we may obtain mercy, and find grace to help in time of need.” (Hebrews 4:16)