How is man saved Bible verses?

That is in John chapter 3 verse 16. 16For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.

12But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name: 27And the keeper of the prison awaking out of his sleep, and seeing the prison doors open, he drew out his sWord, and would have killed himself, supposing that the prisoners had been fled. 28But Paul cried with a loud voice, saying, Do thyself no harm: for we are all here. 29Then he called for a light, and sprang in, and came trembling, and fell down before Paul and Silas, 30And brought them out, and said, Sirs, what must I do to be saved? 31And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house.

8For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: 9Not of works, lest any man should boast. 8But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us. 9Much more then, being now justified by his blood, we shall be saved from wrath through him. 10For if, when we were enemies, we were reconciled to God by the death of his Son, much more, being reconciled, we shall be saved by his life. 11And not only so, but we also joy in God through our Lord Jesus Christ, by whom we have now received the atonement. 9That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.