The Westminster Shorter Catechism (1648)

39 But we are not of them who draw back unto perdition; but of them that believe to the saving of the soul.

12 But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name:

3 Thou wilt keep him in perfect peace, whose mind is stayed on thee: because he trusteth in thee.

4 Trust ye in the LORD for ever: for in the LORD JEHOVAH is everlasting strength:

9 And be found in him, not having mine own righteousness, which is of the law, but that which is through the faith of Christ, the righteousness which is of God by faith:

16 Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified.