Rom 10:9 That 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.
Rom 10:10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.
Rom 10:11 For the scripture saith, Whosoever believeth on him shall not be ashamed.
Rom 10:12 For there is no difference between the Jew and the Greek: for the same Lord over all is rich unto all that call upon him.
Rom 10:13 For whosoever shall call upon the name of the Lord shall be saved.
Mat 22:13 Then said the king to the servants, Bind him hand and foot, and take him away, and cast him into outer darkness; there shall be weeping and gnashing of teeth.
Mat 22:14 For many are called, but few are chosen.
1Co 12:3 Wherefore I give you to understand, that no man speaking by the Spirit of God calleth Jesus accursed: and that no man can say that Jesus is the Lord, but by the Holy Ghost.
Joh 6:44 No man can come to me, except the Father which hath sent me draw him: and I will raise him up at the last day.
Mat 16:16 And Simon Peter answered and said, Thou art the Christ, the Son of the living God.
Mat 16:17 And Jesus answered and said unto him, Blessed art thou, Simon Barjona: for flesh and blood hath not revealed it unto thee, but my Father which is in heaven.
No person can accept the truth unless God works in their life for the flesh on it's own would never accept the truth for there is no good things that dwells in the flesh, and the Spirit and flesh are contrary to each other.
Mat 22:13 Then said the king to the servants, Bind him hand and foot, and take him away, and cast him into outer darkness; there shall be weeping and gnashing of teeth.
Mat 22:14 For many are called, but few are chosen.
1Co 1:26 For ye see your calling, brethren, how that not many wise men after the flesh, not many mighty, not many noble, are called.
Many are called but few are chosen, and when they are called God will work with them but not all make it to the truth of what Christianity is about.
God will call us according to our heart condition which the ones that were not called were too self exalting with a lack of love for people and liked positions of power over people.
2Ti 3:4 lovers of pleasures more than lovers of God;
2Ti 3:5 Having a form of godliness, but denying the power thereof: from such turn away.
2Ti 3:7 Ever learning, and never able to come to the knowledge of the truth.
Mat 7:21 Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven.
Mat 7:23 And then will I profess unto them, I never knew you: depart from me, ye that work iniquity.
Which many can confess Christ as Lord for God was working with them when He called them but they fell short of what Christianity is about in the truth.