Our sicknesses, as well as our sins, were bore
by Him; and not only that, but the Cross was
cast into the bitter waters of life (just like Marah)
making them sweet and we do not need to drink
of the bitter springs for Jesus will lead us to the
fountains of living waters.

So we can be rid of sickness and stay that way
through the law of the Spirit of the life in Christ
Jesus.