How shall you tell if it be perpendicular?
Bring the plumb-line, put it against it, and you will soon find out where the wall bulges.
You take up a drawing of wood, and hill, and tree; how shall you know if it be correctly sketched?
Put beside it the master's copy, look from one to another, and you will soon discover the mistakes and imperfections of the pupil.
Take the perfect law of God, lay it beside your own life, as these people did, you will find out exactly what they found.

You will find that you are a sinner, that you have left undone what ought to have been done, that you have done what ought not to have been done, and that you yourself are full of sin.
'Thou shalt love the Lord thy God with all thy heart, with all thy mind, with all thy soul, and with all thy strength.' Have you done that?
No! Then you are not like the copy.
'Ye shall diligently keep the commandments of the Lord thy God.' Have you done that?
No! Then you are not like the copy.
So felt the company at the water-gate, as they listened to the word that day.

And with the knowledge came tears, bitter, sorrowful tears, as they thought of the past.

Each man, woman, and child amongst them was ready to cry out 'Red like crimson, deep as scarlet, Scarlet of the deepest dye, Are the manifold transgressions, That upon my conscience lie.
God alone can count their number, God alone can look within, O the sinfulness of sinning, O the guilt of every sin!' Some years ago there lived in Jerusalem a Scripture reader.

He was an Austrian Jew, and he worked amongst the large Jewish population in Jerusalem.