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 10:46-48

46 For they heard them speak with tongues, and magnify God. Then answered Peter,

47 Can any man forbid water, that these should not be baptized, which have received the Holy Ghost as well as we?

48 And he commanded them to be baptized in the name of the Lord. Then prayed they him to tarry certain days.

Hebrews 6:1-3

1 Therefore leaving the principles of the doctrine of Christ, let us go on unto perfection; not laying again the foundation of repentance from dead works, and of faith toward God,

2 Of the doctrine of baptisms, and of laying on of hands, and of resurrection of the dead, and of eternal judgment.

3 And this will we do, if God permit.

Baptism is still a thing.