Water is cleansing - water is restorative - water saves…and it is all through the old testament
Lets just begin with creation
The waters were divided and creation came from water
Water is mentioned 722 times in the old testament
Noah was saved by water from the wickedness around him
Moses passed through the water to be saved from the Egyptians
Washing with Water cleansed impurities or discharges in Leviticus 15
In the new testament 1 Peter 3:21 - baptism now saves us!! Not removing the filth of the flesh, but an answer of a clean conscience towards God. This is shown as a saving similar to how Noah and the eight souls on the ark were saved by water.