Galater 6:8

Translate, "He that soweth unto his own flesh," with a view to fulfilling its desires. He does not say, "His spirit," as he does say, "His flesh." For in ourselves we are not spiritual, but carnal. The flesh is devoted to selfishness. corruption--that is, destruction (Phi 3:19). Compare as to the deliverance of believers from "corruption" (Rom 8:21). The use of the term "corruption" instead, implies that destruction is not an arbitrary punishment of fleshly-mindedness, but is its natural fruit; the corrupt flesh producing corruption, which is another word for destruction: corruption is the fault, and corruption the punishment (see on Co1 3:17; Pe2 2:12). Future life only expands the seed sown here. Men cannot mock God because they can deceive themselves. They who sow tares cannot reap wheat. They alone reap life eternal who sow to the Spirit (Psa 126:6; Pro 11:18; Pro 22:8; Hos 8:7; Hos 10:12; Luk 16:25; Rom 8:11; Jam 5:7).

This chapter chiefly consists of two parts. In the former the apostle gives us several plain and practical directions, which more especially tend to instruct Christians in their duty to one another, and to promote the communion of saints in love (Gal 6:1-10). In the latter he revives the main design of the epistle, which was to fortify the Galatians against the arts of their judaizing teachers, and confirm them in the truth and liberty of the gospel, for which purpose he, I. Gives them the true character of these teachers, and shows them from what motives, and with what views, they acted (Gal 6:11-14). And, II. On the other hand he acquaints them with his own temper and behaviour. From both these they might easily see how little reason they had to slight him, and to fall in with them. And then he concludes the epistle with a solemn benediction.

6:8 Living to please the Spirit is only possible in the Spirit’s power (3:3; 5:16). Those who trust in human effort and those who think they can do as they wish are in the same position: They live to satisfy their own sinful nature. Such people harvest decay and death. Those who live by the Spirit’s power and trust in God will harvest everlasting life.