In Deuteronomy 6 we find the first of those texts which our Lord quotes. Hence, I need not say, there is peculiar solemnity in its character. The passage insists on the unity of the true God. This was a truth which Israel was most prone to disregard. The very point of faith, for which we are especially responsible, is what we are in most danger of forgetting under pressure or carelessness. Whatever we are called out for is what Satan endeavors to destroy. By whom? Our adversaries? No, not merely so, but by ourselves. To apply what now occupies us here, give me the chief, fundamental, and most salient points of Christianity, and I will show you that these are the very truths that Christians are most in danger of forgetting. What is it that characterizes Christianity? Redemption accomplished; Christ the head of the church above; the Holy Spirit sent down here below; and all this borne witness to in the worship and in the ways of Christians and the church. Is this what you feel? Is this what you read? Is this what you hear? Nothing less. The hardest thing to find now in a Christian is real intelligence about Christianity. Commonly indeed we see that Christians understand a great deal better what the Jews ought to have done, than what they themselves ought to be doing. In short, whatever it is to which God summons us is precisely what the devil endeavors to obscure, and so to hinder our testimony.
The point then for the Jew was the one true God. “Jehovah God that hath brought thee out of the land of Egypt” – He was the only God. To what were they always inclined? Setting up other gods in the wilderness. Accordingly this is the solemn and, central truth that is brought in here. “Hear, O Israel.” They were about to go into the land to enjoy it; but “Hear, O Israel: Jehovah our God is one. And thou shalt love Jehovah thy God with all thine heart, and with all thy soul, and with all thy might. And these words, which I command thee this day, shall be in thine heart. And thou shalt teach them diligently unto thy children”; and they were to bind them for a sign; they were to make much of them at all points – outside the house and inside, and always. And this is enforced in the very words which our Saviour employed. “Thou shalt fear Jehovah thy God, and serve Him, and shalt swear by His name.” It was to be a real fealty: it was not merely a dogma pure and simple, but to be known as a fact. It was revealed as the great operative truth, continually impressed on Israel – their one true God.
It seems needless to say that this is altogether short of Christianity; and as we have referred to the difference of a Jew and a Christian as to the Sabbath-day and the first day of the week, so as to this. The essential revelation of God to us is the Father, Son, and Holy Spirit – the Father displayed by the Son, and made known by the Spirit. This is just as characteristic a truth for us as the one Jehovah was for a Jew. Now notoriously as a dogma it is acknowledged everywhere in Christendom except by heretics; but the moment it is appropriated as a practical fact, people stand back and begin to qualify and mutilate. “Is He then indeed your Father?” “Can you call Him Father?” “Oh, this might be dangerous, and that were presumptuous”; and so men talk on – that is, the moment it becomes a real living truth, and not words on paper. The acknowledgment in a creed is all well; but when it comes to be the truth for one’s own soul, stamping its value on our communion and also on our ways, men at once retreat back into some “dim religious light,” where it is all forgotten and lost, merely owned verbally, but without power for the heart and life.
Before we pass to the next chapter, it would be well to observe for a moment the second answer of our Lord – “Ye shalt not tempt Jehovah your God.” What was meant by this? Not any ordinary fleshly sin on our part, as many suppose. Tempting God was to doubt Him, as many, all of us, are apt to do. Satan took advantage of the scripture that said that He should not dash His foot against a stone. He quotes accordingly Psalm 91, intimating to Jesus that, if He were the Son of God, all He had to do was to throw Himself from the pinnacle of the temple; and all must endorse His claims. Was not this a positive promise? God would “give his angels charge concerning him”; and what a fine proof it would be that He was the true Messiah, if He threw Himself down from such a height, and withal the angels preserved Him! But Satan as usual tampered with the plain written word, alike with its letter and its spirit; for after “to keep thee” he omitted “in all thy ways.” This he tried to conceal from One, all whose ways were obedience, venturing to insinuate what a noble demonstration of His Messiahship it would be. And what was the Lord’s answer? “Thou shalt not tempt Jehovah thy God.”
The true Israelite does not require to put God to the test. If you suspect a rogue is in your employment, you may test him by marking a piece of money to see whether he steals or not: am I then going to mark something for God to see whether He will keep His word or not? I know God will do it; I do not require to put Him to the proof. This is the meaning of it, and such is precisely the path of duty. He that believes may calmly confide in God under all circumstances. His Father will take care of him. Is not this in wonderful harmony with the rest, following on the confession of the one true God of Israel?