Strong G5204 ὕδωρ hudōr hudatos · water

1 John

1. 1 John 5:6
   This is he that came by water and blood, even Jesus Christ; not by water only, but by water and blood. And it is the Spirit that beareth witness, because the Spirit is truth.
2. 1 John 5:8
   And there are three that bear witness in earth, the spirit, and the water, and the blood: and these three agree in one.