The Bible teaches that a sinner is justified by faith alone apart from works (e.g. Rom 3-4). One question the Christian might ask in light of “faith alone” is this: “How can any of our works be accepted by a holy God since there is so much sinfulness in even best of them?” Thomas Boston (d. 1732) asked that question, and answered it this way:
Answer 1. In point of justification they are not, nor cannot be accepted; that is, our persons cannot be accepted as righteous for our works, since they are not legally perfect, perfect in every point. In the way of the covenant of works, the work was first to be accepted for its own sake, as absolutely perfect; and then the person for the works’ sake. So that whosoever seek by their works to be accepted of God, they go back to the covenant of works; and must either bring works every way perfect, or be rejected; and because they cannot do such works, “therefore by the works of the law shall no flesh be justified,” Gal. 2:16.
Answer 2. In point of sanctification the good works of the justified may be accepted; that is, one’s person being accepted, his works may be accepted, being evangelically perfect, though not legally; being perfect in parts, though not in degrees. For in the way of the covenant of grace, the person is first accepted in Christ, and then his work though imperfect. Hence it appears,
(1.) That to a person’s being accepted of God in Christ, there is no working, but believing required; Mark 5:36. For till the person be accepted of God in Christ, he can do no acceptable work. He can yield no savory fruit till he be ingrafted by faith in Christ.
(2.) That the way to bring sinners to good works, is to bring them to Christ in the first place by faith, that they may be justified and accepted in him. Men may be made proud legalists otherwise, but not evangelical Christians; whited sepulchers, but still full of rottenness.
(3.) That there is very good reason why the good works of unbelievers are rejected, because they are imperfect; and yet the good works of believers are accepted, though they be imperfect….
The Westminster Confession (16.6) says it in a similar way:
“The persons of believers being accepted through Christ, their good works also are accepted in him; not as though they were in this life wholly unblamable and unreprovable in God’s sight, but that he, looking upon them in his Son, is pleased to accept and reward that which is sincere, although accompanied with many weaknesses and imperfections.”
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