The Bible says nothing about...being dunked in water...whatever that means.
Psa 106:9 He rebuked the Red sea also, and it was dried up: so he led them
through the depths, as through the wilderness.
Psa 106:10 And he saved them from the hand of him that hated them, and redeemed them from the hand of the enemy.
Psa 106:11 And
the waters covered their enemies: there was not one of them left.
1Co_10:2 And were all
baptized unto Moses in the cloud and in the sea;
2Pe_3:6 Whereby the world that then was, being
overflowed with water, perished:
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:
2Ki_5:14 Then went he down, and
dipped himself seven times
in Jordan, according to the saying of the man of God: and his flesh came again like unto the flesh of a little child, and he was clean.
Joh_3:23 And John also was baptizing in Aenon near to Salim, because there was
much water there: and they came, and
were baptized.
Act_8:38 And he commanded the chariot to stand still: and they
went down both into the water, both Philip and the eunuch; and he baptized him.
Act 8:39 And when they were
come up out of the water, the Spirit of the Lord caught away Philip, that the eunuch saw him no more: and he went on his way rejoicing.