t know why God has so
tied Himself up as He has, but it is a fact. Although angels are
available, and the direct operations of His Spirit would be almighty,
His plan is to get His will made known by one man telling another. Men
to save men; men to help men; that seems to be God's method, and He
appeals now, as before, 'Who will go for Us?'

2. The second point I named was _the response to the Divine appeal_:
'Here am I; send me'. Cannot that be repeated in various directions
among us? Thank God for the responses already made, and but for which
dark and hopeless, indeed, would be human hearts and places which have
been illuminated by the light of God's Salvation. But, Oh, for more
ready and larger responses to the appeal which is ever sounding in our
ears!

Isaiah's response was a _voluntary_ one. Some people are like the horse
whom his owner said had only two faults; one, that he 'took such a lot
of catching', and the other that 'he would not work when he was
caught'. Others have to be disciplined and broken by trouble before
they fall in line with God's will. But why should not every one who
names our Lord's name cry out with a ready spirit, 'Here am I, Lord;
send me'?

This was also _a response without conditions_; or, as we put it, an
unreserved surrender, an unconditional consecration. It is a matter to
rejoice over when men and women express willingness to do any service,
but it is infinitely better when, coming up to the Divine altar, they
say, 'Here am I, Lord; have your own way; do as you will with me;
anything for Jesus--anywhere for Thee'. Have you got there yet? If not,
let that be the advance which you make now, without further bargaining
and reserves.

But _this response came from a heart qualified to make it good_. Ah!
that is the secret of all successful service. Isaiah, cleansed,
sanctified, and touched with Divine Fire, was a different person from
the one who lay grovelling in the dust, and crying, 'Woe is me!' Up to
that moment he was too much like those around him; but now, touched,
baptized, and qualified, he was fit to be God's witness and agent.

That just touches the point where some of you are lacking. You need
this cleansing, this 'unction of the Holy One', or you need it afresh
in the face of the world's crying need. You hold back, you stumble and
often fail; but why? The answer is, you need just what Isaiah got to
qualify him for his mission. You must get this so as to be able to
respon