How to be a True Christian?

"The thief cometh not, but for to steal, and to kill, and to destroy: I am come that they might have life,

and that they might have it more abundantly."

~ John 10:10

PROBLEM

1. All are sinners

For all have sinned, and come short of the glory of God;

~ Romans 3:23

2. The penalty of sin is death

For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord.
~ Romans 6:23

3. We cannot be saved by good works

For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:
Not of works, lest any man should boast.
~ Ephesians 2:8, 9

Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration, and renewing of the Holy Ghost;
~ Titus 3:5

SOLUTION

1. Christ is the answer

But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us.
~ Romans 5:8

Therefore if any man be in Christ, he is a new creature: old things are passed away; behold, all things are become new.
~ 2 Corinthians 5:17

2. We must repent and believe

And Jesus said unto them, Come ye after me, and I will make you to become fishers of men.
~ Mark 1:17

But as many as received him, to them gave he power to become the sons of God, even to them that believe on his name:
~ John 1:12

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. For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.
~ Romans 10:9, 10

3. We have assurance of salvation

And I give unto them eternal life; and they shall never perish, neither shall any man pluck them out of my hand. My Father, which gave them me, is greater than all; and no man is able to pluck them out of my Father's hand.
~ John 10:28, 29

And this is the record, that God hath given to us eternal life, and this life is in his Son. He that hath the Son hath life; and he that hath not the Son of God hath not life. These things have I written unto you that believe on the name of the Son of God; that ye may know that ye have eternal life, and that ye may believe on the name of the Son of God.
~ 1 John 5:11-13