Start with John 3:3.
3 Jesus answered and said unto him, Verily, verily, I say unto thee,
Except a man be born again, he cannot see the kingdom of God.
Many Protestants don't tell people this. We aren't born again by walking to the front of the church and confessing Christ. The new birth is wrought by the Holy Spirit.
Being born again causes a person to love Christ and that love is why we obey Him and feel sorrow when when we mess up.
1 John 1
5 This then is the message which we have heard of him, and declare unto you, that God is light, and in him is no darkness at all.
6 If we say that we have fellowship with him, and walk in darkness, we lie, and do not the truth:
7 But if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin.
8 If we say that we have no sin, we deceive ourselves, and the truth is not in us.
9 If we confess our sins, he is faithful and just to forgive us
our sins, and to cleanse us from all unrighteousness.
10 If we say that we have not sinned, we make him a liar, and his word is not in us.
We ask God to guide us and to help us abandon old habits/sins. Because we have faith (given to us by God), He helps us to walk in the light. The more we read our Bibles the more we love Him.
Psalm 119
11 Thy word have I hid in mine heart, that I might not sin against thee.
Proverbs 3
5 Trust in the LORD with all thine heart; and lean not unto thine own understanding.
6 In all thy ways acknowledge him, and
HE shall direct thy paths.
2 Timothy 3
16 All scripture
is given by inspiration of God, and
is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
17 That the man of God may be perfect, throughly furnished unto all good works.
God saved us via the new birth and He keeps us. The reason we work for Him is because we
love Him.
Paul said:
1 Corinthians 15
3 For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures;
4 And that he was buried, and that he rose again the third day according to the scriptures:
5 And that he was seen of Cephas, then of the twelve:
6 After that, he was seen of above five hundred brethren at once; of whom the greater part remain unto this present, but some are fallen asleep.
7 After that, he was seen of James; then of all the apostles.
8 And last of all he was seen of me also, as of one born out of due time.
9 For I am the least of the apostles, that am not meet to be called an apostle, because I persecuted the church of God.
10 But by the grace of God I am what I am: and his grace which was bestowed upon me was not in vain; but I laboured more abundantly than they all: yet not I, but the grace of God which was with me.
God will lead you. He said so.