The difference between believers and unbelievers is that believers have accepted God’s provision for their sin.  Unbelievers have not.

But as many as received him (Jesus Christ), to them gave he power to become the sons of God, even to them that believe on his name: which were born, not of blood, nor of the will of the flesh, nor of the will of man, but of God.  John 1:12&13

And you hath he quickened (made alive), who were dead in trespasses and sins; Wherein in time past ye walked according to the course of this world, according to the prince of the power of the air, the spirit that now worketh in the children of disobedience: Among whom also we all had our conversation in times past in the lusts (desires) of our flesh, fulfilling the desires of the flesh and of the mind; and were by nature the children of wrath, even as others.

But God, who is rich in mercy, for his great love wherewith he loved us, Even when we were dead in sins, hath quickened us (made us alive) together with Christ, (by grace ye are saved;) And hath raised us up together, and made us sit together in heavenly places in Christ Jesus: That in the ages to come he might shew the exceeding riches of his grace in his kindness toward us through Christ Jesus.

For by grace (God’s help or enabling) are ye saved through faith (a firm persuasion or conviction brought about by hearing the Word of God); and that not of yourselves: it is the gift of God: Not of works (human activity), lest any man should boast (brag).

…let the word of Christ dwell (take up its life) in you richly…