I wonder do any of you know what a plumb-line is? I expect the boys do! Lets explain for the girl's benefit what it is.
If you watch a workman building a wall, laying bricks or stones one upon another, you perhaps will see that he lays each stone or brick true and straight to a line that hangs down that side of the wall that he is building. This is called a plumb-line, or a “plummet”. The word plumb means “lead”, and so, a plumb-line is a cord attached to a ball of lead. You can test the straightness of any wall or building by using this simple little gadget which any boy or girl can easily make, and which has been used by masons and carpenters and builders for years and years.
Long ago, the preachers of the Old Testament used the idea of a plumb-line to teach the people that God would test them with the plumb-line of His Truth, and Righteousness. Amos, one of the great preachers of the Old Testament said: “... behold, the Lord stood upon a wall made by a plumb-line, with a plumb-line in his hand. And the Lord said unto me, Amos, what seest thou? And I said, A plumb-line. Then said the Lord, Behold, I will set a plumb-line in the midst of my people Israel: I will not again pass by them any more.”
There you are, boys and girls, God will test us by His plumb-line – by His perfect standard which we see in Jesus Christ His Son.
Are we like Him, do you think? In our thoughts, and in our words, and in our actions. How much, then, we need to pray: “Please God , make me more like Jesus every day.”