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.