A bittersweet process

This is week three from our series, Jehovah. We went through Exodus 15, where God declares that "I am The Lord, who heals you." God wants to bring us through the region of Marah (bitterness) to the place of Elim (refreshing).

Exodus 15:22-26

"The chemicals in the sap of the broken limb drew the mineral content down to the bottom of the pools and left only good water at the top." 

"MIT engineers have been investigating sapwood's natural filtering ability. They have fabricated new xylem filters that can filter out pathogens such as E. coli and rotavirus in lab tests, and have shown that the filter can remove bacteria from contaminated spring, tap and groundwater." 

Exodus 15:27