And let us not be weary in well doing: for in due season we shall reap, if we faint not. Let us not be weary - Well-doing is easier in itself than ill-doing; and the danger of growing weary in the former arises only from the opposition to good in our own nature, or the outward hinderances we may meet with from a gainsaying and persecuting world.
In due season we shall reap - As the husbandman, in ploughing, sowing, and variously laboring in his fields, is supported by the hope of a plentiful harvest, which he cannot expect before the right and appointed time; so every follower of God may be persuaded that he shall not be permitted to pray, weep, deny himself, and live in a conformity to his Maker's will, without reaping the fruit of it in eternal glory. And although no man obtains glory because he has prayed, etc., yet none can expect glory who do not seek it in this way. This is sowing to the Spirit; and the Spirit and the grace are furnished by Christ Jesus, and by him the kingdom of heaven is opened to all believers; but only those who believe, love, and obey, shall enter into it.