lders drop in from time to time to read and
pray with him. To-day one of them, the senior member of the little band,
is moved, in taking farewell of his dying minister, to ask a question of
him. After grasping the sick man's hand and moving towards the door, a
sudden impulse seizes him and he returns to the bedside.

'You have often given us good advice, Mr. Erskine,' he says, 'as to what
we should do with our souls in life and in death; may I ask what you are
now doing with your own?'

'I am just doing with it,' the old man replies, 'what I did forty years
ago; I am resting it on that word, "_I am the Lord thy God!_"'

V

Now what was it, I wonder, that Ebenezer Erskine saw in this string of
monosyllables as he sat on the fallen slab beside the ruined abbey in
1690, as he sat conversing with his convalescent wife in 1708, as he
preached with such passion in 1718, and as he lay dying in 1753? What,
to him, was the significance of that great sentence that, as the
catechism says, forms '_the preface to the Ten Commandments_'? Ebenezer
Erskine saw, underlying the words, two tremendous principles. They
convinced him that _the Center must always be greater than the
Circumference_ and they convinced him that _the Positive must always be
greater than the Negative_.

_The Center must always be greater than the Circumference_, for, without
the center, there can be no circumference. And there, in the very first
word of this 'preface to the Ten Commandments,' stands the august center
around which all the mandates revolve. '_I_ am the Lord thy God.' 'I
have many times essayed,' Luther tells us in his _Table-Talk_,
'thoroughly to investigate the Ten Commandments; but at the very
outset--"_I am the Lord thy God_"--I stuck fast. That single word "_I_"
put me to a non-plus.' I am not surprised. The man who would enter this
Palace of Ten Chambers will find God awaiting him on the threshold; and
he must make up his mind as to his relationship with Him before he can
pass on to investigate the interior of the edifice. In learning his
Shorter Catechism that Sunday morning at Dryburgh, Ebenezer Erskine,
then a boy of ten, had come face to face with God; and he felt that he
dared not proceed to the _Circumference_ until his heart was in harmony
with the _Center_.

VI

He felt, too, that the _Positive_ must precede the _Negative_. The
_person_ of the most High must come before the _precepts_ of the Most
High; the _Thou Shalts_ mus