And Philip said: If thou believest with all thy heart, thou mayest. And he answering, said: I believe that Jesus Christ is the Son of God.

If.

Acts 8:12,13,21 But when they had believed Philip preaching of the kingdom of God, in the name of Jesus Christ, they were baptized, both men and women. . . .

Acts 2:38,39 But Peter said to them: Do penance: and be baptized every one of you in the name of Jesus Christ, for the remission of your sins. And you shall receive the gift of the Holy Ghost. . . .

Matthew 28:19 Going therefore, teach ye all nations: baptizing them in the name of the Father and of the Son and of the Holy Ghost.

Mark 16:16 He that believeth and is baptized shall be saved: but he that believeth not shall he condemned.

Romans 10:10 For, with the heart, we believe unto justice: but, with the mouth, confession is made unto salvation.

he answered.

1 Peter 3:21 Whereunto baptism, being of the like form, now saveth you also: not the putting away of the filth of the flesh, but, the examination of a good conscience towards God by the resurrection of Jesus Christ.

I believe.

Acts 9:20 And immediately he preached Jesus in the synagogues, that he is the son of God.

Matthew 16:16 Simon Peter answered and said: Thou art Christ, the Son of the living God.

John 6:68,69 And Simon Peter answered him: Lord, to whom shall we go? Thou hast the words of eternal life. . . .

John 9:35-38 Jesus heard that they had cast him out. And when he had found him, he said to him: Dost thou believe in the Son of God? . . .

John 11:27 She saith to him: Yea, Lord, I have believed that thou art Christ, the Son of the living God, who art come into this world.

John 20:31 But these are written, that you may believe that Jesus is the Christ, the Son of God: and that believing, you may have life in his name.

1 Corinthians 12:3 Wherefore, I give you to understand that no man, speaking by the Spirit of God, saith Anathema to Jesus. And no man can say The Lord Jesus, but by the Holy Ghost.

1 John 4:15 Whosoever shall confess that Jesus is the Son of God, God abideth in him, and he in God.

1 John 5:1,5,10-13 Whosoever believeth that Jesus is the Christ, is born of God. And every one that loveth him who begot, loveth him also who is born of him. . . .