Answer: The only Mediator of the covenant of grace is the Lord Jesus Christ₁, who, being the eternal Son of God, of one substance and equal with the Father₂, in the fulness of time became man₃, and so was and continues to be God and man, in two entire distinct natures, and one person, forever.₄

1. 1 Timothy 2:5
2. John 1:1,14; John 10:30; Phil 2:6
3. Galatians 4:4
4. Luke 1:35; Romans 9:5; Col 2:9; Hebrews 7:24-25

For further study see:

1. WSC Q21: Who is the Redeemer of God’s elect?
2. WSC Q22: How did Christ, being the Son of God, become man?
3. WSC Q23: What offices doth Christ execute as our Redeemer?
4. WSC Q24: How doth Christ execute the office of a prophet?
5. WSC Q25: How doth Christ execute the office of a priest?
6. WSC Q26: How doth Christ execute the office of a king?
7. WSC Q27: Wherein did Christ’s humiliation consist?
8. WSC Q28: Wherein consisteth Christ’s exaltation?