atlas ;
Rom. 10:17

So then faith cometh by hearing, and hearing by the word of God.

so if the sinners state is dead in tresspasses and sin , how can a dead man hear ? Doesn't the new birth come first?

vs. 17 is a conclusion made from vs. 14-16
when a person is born again , God gives that individual in the new birth the ability to keep his commandments and we are told in 1 JN.3:23 And this is his commandment, That we should believe on the name of his Son Jesus Christ, and love one another, as he gave us commandment.
EZEK.11:19-20 says what God does in the new birth ,
19 And I will give them one heart, and I will put a new spirit within you; and I will take the stony heart out of their flesh, and will give them an heart of flesh:
20 That they may walk in my statutes, and keep mine ordinances, and do them: and they shall be my people, and I will be their God.
God gives us the new heart so that we are able to keep his commandments ,
one of which is to believe on the name of Jesus Christ.
God in the new birth gives you the ability to believe , the preaching of the Word of God gives the opportunity to excercise the ability.
We cannot hear God's Words if we are not of God. JN.8:47 He that is of God heareth God's words: ye therefore hear them not, because ye are not of God.
if we don't have the ability to believe we will not see the truth of the gospel,
notice what Paul said in 2 COR. 4:3 But if our gospel be hid, it is hid to them that are lost:
4 In whom the god of this world hath blinded the minds of them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them.
Notice here that the gospel here is referred to as a shining light.
If an individual has no faith he doesn't see it because he's blind ,He does'nt have the ability to see, so that understanding it like that we draw this conclusion , that faith is to the Word of God as sight is to light , sight is the ability to see , but if there's no light no matter how good your vision is you will not see , every child of God thats been born again has sight , but he can't see till the light shines , so the purpose of the gospel is to provide the light so the born again child of God with sight can see.
believing is a commandment are we saved by commandment keeping ?