The most important reason is that Jesus himself was baptised. John even question him, because John knew he was unworthy to baptised Jesus. Jesus replied to him. Matt 3:15 But Jesus answered him, ‘let it be so now, for thus it is fitting for us to fulfil all righteousness. ‘
Jesus considered it to be a righteous thing to do. Who are we to think we are superior to Jesus. If Jesus was humble enough to be baptised by a mortal, why should we think we shouldn’t get baptised at all.
John 2:5. Unless one is born again of water and the Holy Spirit, one cannot enter the kingdom of God.
The wording is very straight forwarded. He is simply saying we have to be baptised with water and the Holy Spirit.
Col 2:12. You were buried with him in baptism in which you were also raised.
Gal 3:27. For as many of you who were baptised into Christ have put on Christ.
Matt. 28:19. ‘Go, therefore, make disciples of all nations, baptising them in the name of the Father and of the Son and of the Holy Spirit.
1 Peter 4:21. Baptism, now saves you, as an appeal to God for a clear conscience, through the resurrection of Jesus Christ.
Acts 2:38. You must repent… and every one of you must be baptised in the Name of Jesus Christ for your sins, and you will receive the GIFT of The Holy Spirit.
You won’t receive the GIFT of the Holy Spirit without baptism.
Do you know God will accept another Christian to baptise you if they is no pastor to baptise you. And once more if there is absolutely no one to baptise you God will accept you to do it yourself. God is a fair God, He knows the circumstances we are in. You don’t have to be completely immersed in water either. Like it is popular to do these days. All you have to do is sprinkle water on your forehead after each time you say I baptise you in the name of the Father, sprinkle some more water on your forehead and say an in the Son and again in the Holy Spirit.
I remember when I decided to become a Catholic. I was originally baptised in a Protestant Church as a baby. I was all set up to be baptised again in the Catholic Church but both God and the priest let it be known to me, it was unnecessary. The priest just told me all I have to do is be confirmed in the Catholic Church since my baptism was accepted.
I rather be safe than sorry. It is clear in scripture we are all meant to be baptised. I rather be baptised and know there is a place for me in heaven, because I believe in Jesus Christ as my saviour and I obey him, wouldn’t you?