1st – FAITH
Your plan of salvation starts with faith.  “Trinity” is not in the bible, neither is “Sinner’s Prayer” — One must accept Jesus Christ as their Lord and Savior according to:
John 3:16 – For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
Romans 12:3 – For I say, through the grace given unto me, to every man that is among you, not to think of himself more highly than he ought to think; but to think soberly, according as God hath dealt to every man the measure of faith.

2nd – PLAN OF SALVATION
Salvation – One being delivered which includes: faith, prayer, repentance, baptism, and gift of the Holy Ghost / Holy Spirit.

Matthew 3:11 – I indeed baptize you with water unto repentance; but he that cometh after me is mightier than I, whose shoes I am not worthy to bear; he shall baptize you with the Holy Ghost, and with fire.

Acts 4:12 – Neither is there salvation in any other; for there is none other name under heaven given among men, whereby we must be saved.

John 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.

John 3:5 – Jesus answered, Verily, verily I say unto thee, Except a man be born of the water and of the Spirit, he cannot enter into the kingdom of God.
John 14:26 – But the comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your rememberance, whatsoever I have said unto you.

3rd – REPENTANCE
Repentance – a turning away from sin, wrong deeds, disobedience, or rebellion and a turning back to God. Repentance is associated with prayer.

Acts 2:37-38 – Now when they heard this, they were pricked in their heart, and said unto Peter and to the rest of the apostles, Men and brethren, what shall we do? Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.

Revelation 1:5 – And from Jesus Christ, who is the faithful witness, and the first begotten of the dead, and the prince of the kings of the earth. Unto Him that loved us, and washed us from our sins in His own blood.

4th – BAPTISM
Baptism – Exercising faith by immersion of water of a believer.

Acts 2:38 – Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.

Acts 19:3-6 – And he said unto them, Unto what then were ye baptized? And they said, Unto John’s baptism. Then said Paul, John verily baptized with the baptism of repentance saying unto the people, that they should believe on him which should come after him, that is, on Christ Jesus. When they heard this, they were baptized in the name of the Lord Jesus. And when Paul had laid his hands upon them, the Holy Ghost came on them; and they spake with tongues, and prophesied.

John 3:5 – Jesus answered, Verily, verily I say unto thee, Except a man be born of the water and of the Spirit, he cannot enter into the kingdom of God.

5th – GIFT of the HOLY GHOST / HOLY SPIRIT

Acts 1:8 – But ye shall received power, after that the Holy Ghost is come upon you; and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth.

Acts 2:2-3 – And suddenly there came a sound from heaven as of a rushing mighty wind, and it filled all the house where they were sitting, and there appeared unto them cloven tongues like as of fire, and it sat upon each of them.

Acts 2:38 – Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.

Acts 19:3-6 – And he said unto them, Unto what then were ye baptized? And they said, Unto John’s baptism. Then said Paul, John verily baptized with the baptism of repentance saying unto the people, that they should believe on him which should come after him, that is, on Christ Jesus. When they heard this, they were baptized in the name of the Lord Jesus. And when Paul had laid his hands upon them, the Holy Ghost came on them; and they spake with tongues, and prophesied.