All of these vilifications cannot discourage us. We know that there is nothing the devil hates worse than the Gospel. It is one of his little tricks to blame the Gospel for every evil in the world. Formerly, when the traditions of the fathers were taught in the Church, the devil was not excited as he is now. It goes to show that our doctrine is of God, else "behemoth would lie under shady trees, in the covert of the reed, and fens." The fact that he is again walking about as a roaring lion to stir up riots and disorders is a sure sign that he has begun to feel the effect of our preaching.
VERSE 18. But it is good to be zealously affected always in a good thing, and not only when I am present with you.
"When I was present with you, you loved me, although I preached the Gospel to you in the infirmity of my flesh. The fact that I am now absent from you ought not to change your attitude towards me. Although I am absent in the flesh, I am with you in spirit and in my doctrine which you ought to retain by all means because through it you received the Holy Spirit."
VERSE 19. My little children, of whom I travail in birth again until Christ be formed in you.
With every single word the Apostle seeks to regain the confidence of the Galatians. He now calls them lovingly his little children. He adds the simile: "Of whom I travail in birth again." As parents reproduce their physical characteristics in their children, so the apostles reproduced their faith in the hearts of the hearers, until Christ was formed in them. A person has the form of Christ when he believes in Christ to the exclusion of everything else. This faith in Christ is engendered by the Gospel as the Apostle declares in I Corinthians 4:15: "In Christ Jesus I have begotten you through the Gospel"; and in II Corinthians 3:3, "Ye are the epistle of Christ ministered by us, written not with ink, but with the Spirit of the living God." The Word of God falling from the lips of the apostle or minister enters into the heart of the hearer. The Holy Ghost impregnates the Word so that it brings forth the fruit of faith. In this manner every Christian pastor is a spiritual father who forms Christ in the hearts of his hearers.
At the same time Paul indicts the false apostles. He says: "I have begotten you Galatians through the Gospel, giving you the form of Christ. But these false apostles are giving you a new form, the form of Moses." Note the Apostle does not say, "Of whom I travail in birth again until I be formed in you," but "until Christ be formed in you." The false apostles had torn the form of Christ out of the hearts of the Galatians and substituted their own form. Paul endeavors to reform them, or rather reform Christ in them.
VERSE 20. I desire to be present with you now, and to change my voice.
A common saying has it that a letter is a dead messenger. Something is lacking in all writing. You can never be sure how the written page will affect the reader, because his mood, his circumstances, his affections are so changeable. It is different with the spoken word. If it is harsh and ill-timed it can always be remodeled. No wonder the Apostle expresses the wish that he could speak to the Galatians in person. He could change his voice according to their attitude. If he saw that they were repentant he could soften the tone of his voice. If he saw that they were stubborn he could speak to them more earnestly. This way he did not know how to deal with them by letter. If his Epistle is too severe it will do more damage than good.
If it is too gentle, it will not correct conditions. But if he could be with them in person he could change his voice as the occasion demanded.
VERSE 20. For I stand in doubt of you.
"I do not know how to take you. I do not know how to approach you by letter." In order to make sure that he leaves no stone unturned in his effort to recall them to the Gospel of Christ, he chides, entreats, praises, and blames the Galatians, trying every way to hit the right note and tone of voice.
VERSE 21. Tell me, ye that desire to be under the law, do ye not hear the law?
Here Paul would have closed his Epistle because he did not know what else to say. He wishes he could see the Galatians in person and straighten out their difficulties. But he is not sure whether the Galatians have fully understood the difference between the Gospel and the Law. To make sure, he introduces another illustration. He knows people like illustrations and stories. He knows that Christ Himself made ample use of parables.
Paul is an expert at allegories. They are dangerous things. Unless a person has a thorough knowledge of Christian doctrine he had better leave allegories alone.
The allegory which Paul is about to bring is taken from the Book of Genesis which he calls the Law. True, that book contains no mention of the Law.
Paul simply follows the custom of the Jews who included the first book of Moses in the collective term, "Law." Jesus even included the Psalms.
VERSES 22, 23. For it is written, that Abraham had two sons, the one by a bondmaid, the other by a freewoman. But he who was of the bondwoman was born after the flesh; but he of the freewoman was by promise.
This is Paul's allegory. Abraham had two sons: Ishmael by Hagar, and Isaac by Sarah. They were both the true sons of Abraham, with this difference, that Ishmael was born after the flesh, i.e., without the commandment and promise of God, while Isaac was born according to the promise.
With the permission of Sarah, Abraham took Hagar, Sarah's bondwoman, to wife. Sarah knew that God had promised to make her husband Abraham the father of a nation, and she hoped that she would be the mother of this promised nation. But with the passage of the years her hope died out. In order that the promise of God should not be annulled by her barrenness this holy woman resigned her right and honor to her maid. This was no easy thing for her to do. She abased herself. She thought: "God is no liar.
What He has promised He will perform. But perhaps God does not want me to be the mother of Abraham's posterity. Perhaps He prefers Hagar for the honor."
