Galater 4:13

how through infirmity--rather, as Greek, "Ye know that because of an infirmity of my flesh I preached," &c. He implies that bodily sickness, having detained him among them, contrary to his original intentions, was the occasion of his preaching the Gospel to them. at the first--literally, "at the former time"; implying that at the time of writing he had been twice in Galatia. See my Introduction; also see on Gal 4:16, and Gal 5:21. His sickness was probably the same as recurred more violently afterward, "the thorn in the flesh" (Co2 12:7), which also was overruled to good (Co2 12:9-10), as the "infirmity of the flesh" here.

The apostle, in this chapter, is still carrying on the same general design as in the former - to recover these Christians from the impressions made upon them by the judaizing teachers, and to represent their weakness and folly in suffering themselves to be drawn away from the gospel doctrine of justification, and to be deprived of their freedom from the bondage of the law of Moses. For this purpose he makes use of various considerations; such as, I. The great excellence of the gospel state above the legal (Gal 4:1-7). II. The happy change that was made in them at their conversion (Gal 4:8-11). III. The affection they had had for him and his ministry (Gal 4:12-16). IV. The character of the false teachers by whom they had been perverted (Gal 4:17, Gal 4:18). V. The very tender affection he had for them (Gal 4:19, Gal 4:20). VI. The history of Isaac and Ishmael, by a comparison taken from which he illustrates the difference between such as rested in Christ and such as trusted in the law. And in all these, as he uses great plainness and faithfulness with them, so he expresses the tenderest concern for them.

4:13-14 I was sick: Paul might have had a chronic physical ailment, but it is not certain what it was (cp. 2 Cor 12:7). Paul’s condition was serious and apparently caused difficulty or even offense to the new church in Galatia. Physical trouble was often regarded by both Jews and Gentiles as a sign of God’s judgment (cp. John 9:1-2; Acts 28:4). The Galatians saw past Paul’s outward condition and received him as God’s messenger (literally angel; Greek angelos). • or even Christ Jesus himself: Cp. Luke 10:16.