I believe water baptism is essential to salvation.
Joh 3:5 Jesus answered, Verily, verily, I say unto thee, Except a man be born of water and of the Spirit, he cannot enter into the kingdom of God.
Water
From the base of G5205; water (as if rainy) literally or figuratively: - water.
From a primary word ὕω huō (to rain); rain, especially a shower: - rain.
Jesus said we must be born of water and the Spirit to enter heaven.
Act 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.
Act 8:15 Who, when they were come down, prayed for them, that they might receive the Holy Ghost:
Act 8:16 (For as yet he was fallen upon none of them: only they were baptized in the name of the Lord Jesus.)
Act 8:17 Then laid they their hands on them, and they received the Holy Ghost.
Act 19:3 And he said unto them, Unto what then were ye baptized? And they said, Unto John's baptism.
Act 19:4 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.
Act 19:5 When they heard this, they were baptized in the name of the Lord Jesus.
Act 19:6 And when Paul had laid his hands upon them, the Holy Ghost came on them; and they spake with tongues, and prophesied.
Jews, Samaritans, and Gentiles were baptized in the name of Jesus.
Also Peter said baptism is for the remission of sins.
Remission
From G863; freedom; (figuratively) pardon: - deliverance, forgiveness, liberty, remission.
Mat 28:19 Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost.
Joh 5:43 I am come in my Father's name, and ye receive me not: if another shall come in his own name, him ye will receive.
Heb 1:4 Being made so much better than the angels, as he hath by inheritance obtained a more excellent name than they.
Pro 30:4 Who hath ascended up into heaven, or descended? who hath gathered the wind in his fists? who hath bound the waters in a garment? who hath established all the ends of the earth? what is his name, and what is his son's name, if thou canst tell?
Joh 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 remembrance, whatsoever I have said unto you.
Jesus is the name of the Father, Son, and Holy Ghost.
The Son inherited the name Jesus from the Father.
And why the Bible says what is His name and His Son's name for they would share the same name.
Col 3:17 And whatsoever ye do in word or deed, do all in the name of the Lord Jesus, giving thanks to God and the Father by him.
If everything we do in word and deed is to be done in Jesus' name why would we baptize in the name of the Father, Son, and Holy Ghost.
Which are not names but titles and the name is singular.
The disciples baptized every person in the name of Jesus.
1Pe 3:20 Which sometime were disobedient, when once the longsuffering of God waited in the days of Noah, while the ark was a preparing, wherein few, that is, eight souls were saved by water.
1Pe 3:21 The like figure whereunto even baptism doth also now save us (not the putting away of the filth of the flesh, but the answer of a good conscience toward God,) by the resurrection of Jesus Christ.
Water baptism does now save us.
Rom 6:3 Know ye not, that so many of us as were baptized into Jesus Christ were baptized into his death?
Rom 6:4 Therefore we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even so we also should walk in newness of life.
Rom 6:5 For if we have been planted together in the likeness of his death, we shall be also in the likeness of his resurrection:
Rom 6:6 Knowing this, that our old man is crucified with him, that the body of sin might be destroyed, that henceforth we should not serve sin.
If we are baptized into Jesus' death we shall rise to newness of life.
I believe we have to identify with the man Christ Jesus.
Which He died on the cross, was buried, and rose from the dead, and we repent of our sins, and are baptized, and receive the Holy Spirit.
So baptism is part of the salvation plan of God.
God is a fair God and will not condemn people that have not heard the word of God.
Which they will be judged by their conscious and their belief in a higher power and their love for people.
Which creation testifies there is a God and of His attributes which one of them is love for He provided food, and the means to make clothing, and shelter.
Which testifies of the 2 greatest laws love God, and love people.
When the dead rise to be judged if they loved God and loved people not offending them, and asked God for forgiveness if anything is amiss they can be with God.
They cannot be with Jesus for they did not know the word of God but they can be with Him after the millennial reign of Christ.
So people that were on their way to be baptized but died before baptism, the thief on the cross that could not do anything, people that said confess Jesus but did not mention baptism or it is not essential and they did not come to that conclusion and died, or any legitimate reason they should be saved.
God knows the intentions of people, and their heart, and knows whether they legitimately are not ignoring the truth but have a legitimate reason for not coming to the truth, or they are ignoring the truth not believing what the Bible says that they have come across.
1Co 13:13 And now abideth faith, hope, charity, these three; but the greatest of these is charity.
Gal 5:6 For in Jesus Christ neither circumcision availeth any thing, nor uncircumcision; but faith which worketh by love.
Charity, love in action, works is greater than faith.
No love then no faith then no salvation.
1Co 13:2 And though I have the gift of prophecy, and understand all mysteries, and all knowledge; and though I have all faith, so that I could remove mountains, and have not charity, I am nothing.
Jas 2:14 What doth it profit, my brethren, though a man say he hath faith, and have not works? can faith save him?
Jas 2:15 If a brother or sister be naked, and destitute of daily food,
Jas 2:16 And one of you say unto them, Depart in peace, be ye warmed and filled; notwithstanding ye give them not those things which are needful to the body; what doth it profit?
Jas 2:17 Even so faith, if it hath not works, is dead, being alone.
Jas 2:21 Was not Abraham our father justified by works, when he had offered Isaac his son upon the altar?
Jas 2:22 Seest thou how faith wrought with his works, and by works was faith made perfect?
Jas 2:24 Ye see then how that by works a man is justified, and not by faith only.
1Jn 3:17 But whoso hath this world's good, and seeth his brother have need, and shutteth up his bowels of compassion from him, how dwelleth the love of God in him?
1Jn 3:18 My little children, let us not love in word, neither in tongue; but in deed and in truth.
Love is only valid when done in works.
We are saved by faith, and not by works, when we first confess Christ for that is all we can do.
But when we receive the Spirit we have to have works of love for faith to be active in our life.
Because love is greater than faith and love is the fulfilling of the law.
1Th 1:3 Remembering without ceasing your work of faith, and labour of love, and patience of hope in our Lord Jesus Christ, in the sight of God and our Father.
2Th 1:11 Wherefore also we pray always for you, that our God would count you worthy of this calling, and fulfil all the good pleasure of his goodness, and the work of faith with power.
They try to carry not saved by works throughout their Christian walk but we have to have works of love to have saving faith.
For a person has to have the right perspective of God's kingdom is love so they better help the poor and needy, and wherever else a person needs help.
They say baptism is a work so it is not necessary but faith is a work for the Bible says the work of faith for all we think and do is a work.