Heidelberg Catechism, Week 14

Lord’s Day 14

35. What is the meaning of “conceived by the Holy Spirit, born of the virgin Mary?”

That the eternal Son of God, who is and continues true and eternal God,¹ took upon Himself the very nature of man, of the flesh and blood of the virgin Mary,² by the operation of the Holy Spirit;³ so that He might also be the true seed of David,⁴ like unto His brethren in all things,⁵ except for sin.⁶

¹ Jn 1:1-4, 10:30-36; Rom 1:3-4, 9:5; Col 1:15-17; 1 Jn 5:20; ² Mt 1:18-23; Jn 1:14; Gal 4:4; Heb 2:14; ³ Mt 1:18-20; Lk 1:35; ⁴ 2 Sam 7:12-16; Ps 132:11; Mt 1:1; Lk 1:32; Rom 1:3; ⁵ Php 2:7; Heb 2:17; ⁶ Heb 4:15, 7:26-27

36. What benefit do you receive from the holy conception and birth of Christ?

That He is our Mediator,¹ and with His innocence and perfect holiness² covers, in the sight of God, my sin,³ wherein I was conceived.⁴

¹ 1 Tim 2:5-6; Heb 2:16-17, 9:13-15; ² Rom 8:3-4; 2 Cor 5:21; Gal 4:4-5; 1 Pt 1:18-19; ³ Ps 32:1; 1 Jn 1:9; ⁴ Ps 51:5

As always, the full catechism can be found here.