Isa 6:1
6:1 In the year that king Uzziah died {a} I saw also the Lord
    sitting upon a {b} throne, high and lifted up, and his {c}
    train filled the temple.

    (a) God does not show himself to man in his majesty but
        according as man's capacity to comprehend him, that is,
        by visible signs as John the Baptist saw the Holy Spirit
        in the form of a dove.
    (b) As a judge ready to give sentence.
    (c) Of his garment, or of his throne.

Isa 6:2
6:2 Above it stood the {d} seraphims: each one had six wings;
    with two he covered his {e} face, and with two he covered
    his {f} feet, and with two he {g} flew.

    (d) They were angels so called because they were of a fiery
        colour, to signify that they burnt in the love of God,
        or were light as fire to execute his will.
    (e) Signifying that they were not able to endure the
        brightness of God's glory.
    (f) By which it was declared that man was not able to see
        the brightness of God in them.
    (g) Which declares the prompt obedience of the angels to
        execute God's commandment.

Isa 6:3
6:3 And one cried to another, and said, {h} Holy, holy, holy,
    [is] the LORD of hosts: the whole {i} earth [is] full of his
    glory.

    (h) This often repetition signifies that the angels cannot
        satisfy themselves in praising God, to teach us that in
        all our lives we should give ourselves to the continual
        praise of God.
    (i) His glory not only appears in the heavens but through
        all the world, and therefore all creatures are bound to
        praise him.

Isa 6:4
6:4 And the posts of the door {k} moved at the voice of him that
    cried, and the house was filled with smoke.

    (k) Which was to confirm the prophet, that it was not the
        voice of man: and by the smoke was signified the
        blindness that would come on the Jews.

Isa 6:5
6:5 Then said I, {l} 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 my eyes have seen the King, the
    LORD of hosts.

    (l) He speaks this for two reasons, the one because he who
        was a mortal creature and therefore had more need to
        glorify God than the angels, did not do it, and the
        other because the nearer that man approaches to God, the
        more he knows his own sin and corruption.

Isa 6:6
6:6 Then one of the seraphims flew to me, having a live coal in
    his hand, [which] he had taken with the tongs from off the
    {m} altar:

    (m) Of the burnt offerings where the fire never went out.

Isa 6:7
6:7 And he laid [it] upon my mouth, and said, Lo, this hath
    touched thy lips; and thy iniquity is taken away, and thy
    {n} sin purged.

    (n) This declares that man cannot render due obedience to
        God, till he has purged us.

Isa 6:9
6:9 And he said, Go, and tell this people, {o} Hear ye indeed,
    but understand not; and see ye indeed, but perceive not.

    (o) By which is declared that for the malice of man God will
        not immediately take away his word, but he will cause it
        to be preached to their condemnation, when as they will
        not learn by it to obey his will, and be saved: by this
        he exhorts the ministers to do their duty, and answers
        to the wicked murmurers, that through their own malice
        their heart is hardened,
        Mt 13:14, Ac 28:26, Ro 11:8.

Isa 6:11
6:11 Then said I, Lord, {p} how long? And he answered, Until the
     cities shall be wasted without inhabitant, and the houses
     without man, and the land be utterly desolate,

     (p) As he was moved with the zeal of God's glory, so was he
         touched with a charitable affection toward the people.

Isa 6:13
6:13 But yet in it [shall be] {q} a tenth, and [it] shall
     return, and shall be eaten: as a teil tree, {r} and as an
     oak, whose substance [is] in them, when they cast [their
     leaves: so] the holy seed [shall be] the substance of it.

     (q) Meaning, the tenth part: or as some write, it was
         revealed to Isaiah for the confirmation of his prophecy
         that ten kings would come before their captivity, as
         were from Uzziah to Zedekiah.
     (r) For the fewness of them they will seem to be eaten up:
         yet they will later flourish as a tree, which in winter
         loses leaves, and seems to be dead, yet in summer is
         fresh and green.