Do you believe in Jesus Christ?
Yes. I believe in one Lord, Jesus Christ, the only Son of God.
Catechism for the Global Methodist Church, question 7
7And a cloud appeared, overshadowing them, and a voice came from the cloud: "This is my beloved Son; listen to him."
17And behold, a voice from the heavens said, "This is my beloved Son, in whom I am well pleased."
16For God so loved the world that he gave the unique son, in order that everyone who trusts in him should not perish but have eternal life.
36Let all the house of Israel therefore know for certain that God has made him both Lord and Christ, this Jesus whom you crucified."
9That if you confess with your mouth the Lord Jesus and trust in your heart that God raised him out from the dead, you will be saved.
6yet for us there is one God, the Father, from whom are all things and we exist for him, and one Lord, Jesus Christ, through whom are all things and we exist through him.
11And every tongue should confess that Jesus Christ is Lord, to the glory of God the Father.
4For certain people have slipped in secretly, who long ago were designated for this judgment, ungodly ones who turn the grace of our God into debauchery and deny our only Master and Lord, Jesus Christ.
The second article of the Nicene Creed is confessed the way the first was: a candidate is asked whether he believes, and says "I believe" in the creed's own words. "I believe in one Lord, Jesus Christ, the only Son of God." Article II of the Confession of Faith calls him "the only begotten Son of the Father." ΒΆ102 of the Book of Doctrines and Discipline cites Romans 10:9 for the church's proclamation: "if you confess with your mouth the Lord Jesus and trust in your heart that God raised him out from the dead, you will be saved." A member who answers this question is making that confession.
Jesus is the only Son of God, and the Father himself said so. At the baptism a voice from the heavens declared, "This is my beloved Son, in whom I am well pleased" (Matthew 3:17), and on the mount of transfiguration the voice from the cloud commanded, "This is my beloved son; listen to him" (Mark 9:7). John calls him "the unique son," the Son of whom there is no other, given by the Father so that "everyone who trusts in him should not perish but have eternal life" (John 3:16).
Jesus is Lord. The apostles preached him under this title from the resurrection onward. Peter's first sermon ended with it: "God has made him both Lord and Christ, this Jesus whom you crucified" (Acts 2:36). Paul confessed Jesus alongside the Father in the words of Israel's own confession: "for us there is one God, the Father, from whom are all things and we exist for him, and one Lord, Jesus Christ, through whom are all things and we exist through him" (1 Corinthians 8:6). The hymn of Philippians 2 looks forward to the day "every tongue should confess that Jesus Christ is Lord, to the glory of God the Father" (Philippians 2:11). False teachers are known by the opposite: they "deny our only Master and Lord, Jesus Christ" (Jude 1:4).
A Methodist says this line with the whole church at every baptism and confirmation. Wesley expected it to be said with what he called the faith of a son, the trust of a child in a living Lord, and he distinguished that from the faith of a servant. Romans 10:9 speaks of mouth and heart together. The confession spoken in worship is meant to be the trust that carries a person through the week.