The Westminster Shorter Catechism: Q29 - How are we made partakers of the redemption purchased by Christ? A29 - We are made partakers of the redemption purchased by Christ, by the effectual application of it to us, (John 1:11–12) by his Holy Spirit. (Titus 3:5–6) Q30 - How doth the Spirit apply to us the redemption purchased by Christ? A30 - The Spirit applieth to us the redemption purchased by Christ, by working faith in us, (Eph. 1:13–14, John 6:37–39, Eph. 2:8) and thereby uniting us to Christ in our effectual calling. (Eph. 3:17, 1 Cor. 1:9) Q31 - What is effectual calling? A31 - Effectual calling is the work of God’ s Spirit, (2 Tim. 1:9, 2 Thess. 2:13–14) whereby, convincing us of our sin and misery, (Acts 2:37) enlightening our minds in the knowledge of Christ, (Acts 26:18) and renewing our wills, (Ezek. 36:26–27) he doth persuade and enable us to embrace Jesus Christ, freely offered to us in the gospel. (John 6:44–45, Phil. 2:13)