4:19,20 The Galatians were ready to account the apostle their enemy, but he assures them he was their friend; he had the feelings of a parent toward them. He was in doubt as to their state, and was anxious to know the result of their present delusions. Nothing is so sure a proof that a sinner has passed into a state of justification, as Christ being formed in him by the renewal of the Holy Spirit; but this cannot be hoped for, while men depend on the law for acceptance with God.
20. Translate as Greek, "I could wish." If circumstances permitted (which they do not), I would gladly be with you [M. Stuart].
now—as I was twice already. Speaking face to face is so much more effective towards loving persuasion than writing (2Jo 12; 3Jo 13, 14).
change my voice—as a mother (Ga 4:19): adapting my tone of voice to what I saw in person your case might need. This is possible to one present, but not to one in writing [Grotius and Estius].
I stand in doubt of you—rather, "I am perplexed about you," namely, how to deal with you, what kind of words to use, gentle or severe, to bring you back to the right path.