Romans 3:21

The righteousness of God; that which he has provided in and by his Son Jesus Christ, and which he freely gives to sinners upon condition of faith in Christ. See note to chap Romans 1:17.

Without the law; which justifies men not on the ground that they have rendered to the law the obedience which it requires, but through faith in Christ. But it must be carefully remembered that this faith produces true obedience to God's law. See note to chap Romans 2:6.

Is manifested; clearly revealed in the gospel.

Being witnessed; having been referred to, foretold, and described in the Old Testament. Genesis 3:15; Genesis 12:3; Genesis 15:6; Deuteronomy 18:15; Deuteronomy 18:19; Psalms 51:14; Psalms 71:15-16; Psalms 85:10; Psalms 85:13; Psalms 89:16; Psalms 119:142; Isaiah 43:21; Isaiah 45:5; Isaiah 45:24-25; Isaiah 46:13; Isaiah 51:5; Isaiah 51:7; Isaiah 53:11; Isaiah 54:17; Isaiah 56:1; Isaiah 61:11; Isaiah 62:1-2; Daniel 9:24; Hosea 10:12; Habakkuk 2:4; Malachi 4:2. The way of salvation revealed in the Old Testament was the same which is revealed in the New. The revelation was not so clear and full, and it was addressed more to the outward senses: but in both, the salvation revealed is of grace, not of debt; obtained not by works, but by faith; and given not on account of human merits, but the merits of Christ.